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Is it possible to store data in function to an object literal by passing argument to a function?

I added my html and js snippet however it still not completed. Sorry if the code is a bit messy this is my first attempt for me to build something like this on my own.
`
var selectBread = document.querySelectorAll(".bread-select");
var sauceSelect = document.querySelectorAll(".sauces-select");
var checkBoxes = document.getElementsByTagName("input");
var orderModal = document.getElementById("order-modal");
let chosenItem;
let chosenItemPrice;
var ingredients = [];
var ingredientsPrice = [];
let selectedItem;
var sideDishes = [];
var drink = [];
var toasted;
var currentSandwich = {};
var breadAndPrice = [
["baguette", 0.8],
["burger bun", 0.8],
["ciabatta", 0.9],
["focaccia", 1.5],
["ftira", 0.8],
["olive bread", 1.3],
["rye bread", 1.3],
["sliced bread", 0.9],
["tortilla", 1.6],
["wheat bread", 0.9],
["whole grain bread", 1.2]
];
var sauceAndPrice = [
["chili sauce", 0.25],
["garlic and olive oil", 0.35],
["ketchup", 0.15],
["mayonnaisee", 0.15],
["garlic basil mayo", 0.45],
["mustard", 0.25]
];
function getBreadInfo(el, currentOption) {
for (var i = 0; i < el.length; i++) {
//add event listener to all bread select menu options
el[i].addEventListener("change", function() {
selectedItem = event.target.value; //current selected item
getArrIndex(currentOption, selectedItem);
if (event.target.name === "bread-select") {
currentSandwich.breadType = chosenItem;
currentSandwich.breadPrice = chosenItemPrice;
} else if (event.target.name === "sauce-select") {
currentSandwich.sauce = chosenItem;
currentSandwich.saucePrice = chosenItemPrice;
} else if (event.target.name === "side-dishes-select") {
currentSandwich.sideDish = chosenItem;
currentSandwich.sideDishPrice = chosenItemPrice;
} else if (event.target.name === "drinks-select") {
currentSandwich.drinkSelect = chosenItem;
currentSandwich.drinkPrice = chosenItemPrice;
} else if (event.target.name === "toasted-select") {
currentSandwich.toasted = chosenItem;
}
});
}
}
function getArrIndex(arr, val) {
// val is the selected item
for (var i = 0; i < arr.length; i++) {
//iterate through the current choosen array
if (arr[i][0] === val) {
// when selected item is found in the array
chosenItem = arr[i][0]; // store the item in choosenItem value
chosenItemPrice = arr[i][1]; // store the item price in choosenItem value
}
}
}
getBreadInfo(selectBread, breadAndPrice);
getBreadInfo(sauceSelect, sauceAndPrice);
//get the index of the selected item from the bread and price array
function getIngredientsInfo() {
for (var i = 0; i < checkBoxes.length; i++) {
//loop check boxes
checkBoxes[i].addEventListener("change", function() {
//add event listener to check boxes
if (event.target.checked) {
//check if check boxes are checked
ingredients.push(event.target.name); //push the name of ingredient to ingredients array
ingredientsPrice.push(event.target.value); //get the price of the item checked from value attr and push it to ingredientsPrice array
} else if (event.target.checked === false) {
var index = ingredients.indexOf(event.target.name);
ingredients.splice(index, 1);
ingredientsPrice.splice(index, 1);
}
});
}
}
getIngredientsInfo();
<section class="order-section">
<h2 class="selection-header">Choose your...</h2>
<div class="select-container">
<select class="bread-select" name="bread-select">
<option selected disabled>Bread Type</option>
<option value="baguette">Baguette</option>
<option value="burger bun">Burger Bun</option>
<option value="ciabatta">Ciabatta</option>
<option value="focaccia">Focaccia</option>
<option value="ftira">Ftira</option>
<option value="olive bread">Olive Bread</option>
<option value="rye bread">Rye Bread</option>
<option value="sliced bread">Sliced Bread</option>
<option value="tortilla">Tortilla</option>
<option value="wheat bread">Wheat Bread</option>
<option value="whole grain bread">Whole Grain Bread</option>
</select>
<select class="sauces-select" name="sauce-select">
<option selected disabled>Sauces</option>
<option value="chili sauce">Chili Sauce</option>
<option value="garlic and olive oil">Garlic and Olive Oil</option>
<option value="ketchup">Ketchup</option>
<option value="mayonnaise">Mayonnaise</option>
<option value="garlic basil mayo">Garlic Basil Mayo</option>
<option value="mustard">Mustard</option>
</select>
<select class="side-dishes-select" name="side-dishes-select">
<option selected disabled>Side Dishes</option>
<option value="coleslaw">Coleslaw</option>
<option value="curly fries">Curly Fries</option>
<option value="mixed salad">Mixed Salad</option>
<option value="potato wedges">Potato Wedges</option>
<option value="potatoes salad">Potatoes Salad</option>
<option value="sliced Potatoes fries">Sliced Potatoes Fries</option>
<option value="sweet potatoes fries">Sweet Potatoes Fries</option>
</select>
<select class="drinks-select" name="drinks-select">
<option selected disabled>Drinks</option>
<option value="Still Water">Still Water</option>
<option value="Fizzy Water">Fizzy Water</option>
<option value="coca cola">Coca Cola</option>
<option value="sprite">Sprite</option>
<option value="fanta">Fanta</option>
<option value="kinnie">Kinnie</option>
<option value="cisk">Cisk</option>
</select>
<select class="toasted-select" name="toasted-select">
<option selected disabled>Toasted</option>
<option value="yes">Yes</option>
<option value="no">No</option>
</select>
</div>
</section>
`I have a function which I am using to get data from select menus and I would like to save the data to an object by passing it as an argument. At the moment the only solution I found is to use if statements but it look bad. Any help to refactor this please?
if (event.target.name === "bread-select") {
currentSandwich.breadType = chosenItem;
currentSandwich.breadPrice = chosenItemPrice;
} else if (event.target.name === "sauce-select") {
currentSandwich.sauce = chosenItem;
currentSandwich.saucePrice = chosenItemPrice;
} else if (event.target.name === "side-dishes-select") {
currentSandwich.sideDish = chosenItem;
currentSandwich.sideDishPrice = chosenItemPrice;
} else if (event.target.name === "drinks-select") {
currentSandwich.drinkSelect = chosenItem;
currentSandwich.drinkPrice = chosenItemPrice;
} else if (event.target.name === "toasted-select") {
currentSandwich.toasted = chosenItem;
}

I'd suggest the switch is the way to go, it is both faster and better practice.
switch(event.target.name) {
case 'bread-select':
currentSandwich.breadType = chosenItem;
currentSandwich.breadPrice = chosenItemPrice;
break;
...
default:
}
Thanks

You can use a string to make a property assignment to and object using [] bracket notation. So if you are able to get a relevant property name, or part of a property name from your selects, that should work for you.
var selects = document.querySelectorAll('select');
for(var i = 0; i < selects.length; i++){
selects[i].addEventListener('change', selectHandler);
}
var currentSandwich = {};
var prices = {
soda : .5,
tea : .5,
lemonade : 1,
water : 0,
corn : 2,
potatoes : 2.5,
carrots : 1.5
};
function selectHandler(evt){
var name = evt.target.name;
var selection = evt.target.value;
currentSandwich[name] = selection;
if(prices[selection]){
currentSandwich[name+"price"] = prices[selection];
}else{
currentSandwich[name+"price"] = 0;
}
console.log(currentSandwich);
}
<select name='drink'>
<option value=''>Please Choose One</option>
<option value='soda'>Soda</option>
<option value='tea'>Tea</option>
<option value='lemonade'>Lemonade</option>
<option value='water'>Water</option>
</select>
<select name='side'>
<option value=''>Please Choose One</option>
<option value='corn'>Corn</option>
<option value='potatoes'>Potatoes</option>
<option value='carrots'>Carrots</option>
</select>

This is a significantly different approach. It stores prices and some keys in the HTML markup, and uses a simple function to use these to update your sandwich.
I don't know if this sort of refactoring is what you were looking for, but it's one reasonable way to avoid such repetitive logic.
var sandwich = {};
var sandwichContainer = document.getElementById('sandwich-options');
sandwichContainer.addEventListener('change', function(ev) {
var select = event.target;
var choice = select.selectedOptions[0];
var choiceName = select.dataset.choiceName;
sandwich[choiceName] = choice.value
var priceName = select.dataset.choicePrice;
if (priceName) {
sandwich[priceName] = Number(choice.dataset.price);
}
console.log(sandwich)
});
<section class="order-section">
<h2 class="selection-header">Choose your...</h2>
<div id="sandwich-options">
<select class="bread-select" name="bread-select"
data-choice-name="breadType" data-choice-price="breadPrice">
<option selected disabled>Bread Type</option>
<option value="baguette" data-price="0.8">Baguette</option>
<option value="burger bun" data-price="0.8">Burger Bun</option>
<option value="ciabatta" data-price="0.9">Ciabatta</option>
<option value="focaccia" data-price="1.5">Focaccia</option>
<option value="ftira" data-price="0.8">Ftira</option>
<option value="olive bread" data-price="1.3">Olive Bread</option>
<option value="rye bread" data-price="1.3">Rye Bread</option>
<option value="sliced bread" data-price="0.9">Sliced Bread</option>
<option value="tortilla" data-price="1.6">Tortilla</option>
<option value="wheat bread" data-price="0.9">Wheat Bread</option>
<option value="whole grain bread" data-price="1.2">Whole Grain Bread</option>
</select>
<select class="sauces-select" name="sauce-select" data-
choice-name="sauce", data-choice-price="saucePrice">
<option selected disabled>Sauces</option>
<option value="chili sauce" data-price="0.25">Chili Sauce</option>
<option value="garlic and olive oil" data-price="0.35">Garlic and Olive Oil</option>
<option value="ketchup" data-price="0.15">Ketchup</option>
<option value="mayonnaise" data-price="0.15">Mayonnaise</option>
<option value="garlic basil mayo" data-price="0.45"
>Garlic Basil Mayo</option>
<option value="mustard" data-price="0.25">Mustard</option>
</select>
<select class="toasted-select" name="toasted-select" data-choice-name="toasted">
<option selected disabled>Toasted</option>
<option value="yes" data-price="0">Yes</option>
<option value="no" data-price="0">No</option>
</select>
</div>
</section>
An alternate approach would be to store all your prices in a object keyed by the select names, something like this:
var prices = {
'bread-select': {
'baguette': 0.8,
...
},
'sauces-select': {
'chili sauce': 0.25,
...
},
...
};
and then use select.name and choice.value from the above to key into this object. You would also need another object, or a way to enhance this one to store the final property names.

How to delete options in a dropdown list with javascript?

I have a dynamic dropdown list made of a parent-dropdown and a child-dropdown. I have a script that disables options in a child-dropdown when an option in the parent-dropdown is selected.
Instead of disabling it, I would like to completely remove the options in the child-dropdown so they won't be available.
"use strict";
window.onload = function() {
document.getElementById('category_select').addEventListener("change", function() {
function parent_() {
let i = document.getElementById('category_select');
let j = i.options[i.selectedIndex].value;
return j;
}
function child_() {
let k = document.getElementById('type_select');
for (let i = 0; i < k.options.length; ++i) {
if (k.options[i].value === parent_()) {
k.options[i].disabled = false;
} else if (k.options[i].value !== parent_()) {
k.options[i].disabled = true; //options get disabled and I would like to delete them ...
}
}
}
child_()
});
};
<select id="category_select">
<option value="">Please select</option>
<option value="1">Electronics</option>
<option value="2">Appliances</option>
</select>
<select id="type_select">
<option value="" disabled="">Please select</option>
<option value="1">Phones</option>
<option value="1">Tablets</option>
<option value="2" disabled="">Couch</option>
<option value="2" disabled="">Refrigerator</option>
<option value="2" disabled="">Vacuum</option>
</select>
Basically, when the option with the value of 1 is selected in category_select, all options in type_select with a value of 2 are disabled. I would like to delete them.
What is a simple and elegant way of doing this?
EDIT
Looks like the best solution for doing this can be found there http://jsfiddle.net/Lcjp2xav/1/ and has been provided by #Jagjeet Singh

You can do this by using k.options[i].style.display, if you want to completely remove then option then use k.options[i].remove()
function parent_() {
let i = document.getElementById('category_select');
let j = i.options[i.selectedIndex].value;
return j;
}
function child_() {
let k = document.getElementById('type_select');
for (let i = 0; i < k.options.length; ++i) {
if (k.options[i].value === parent_()) {
k.options[i].style.display = 'block';
k.options[i].disabled = false;
} else if (k.options[i].value !== parent_()) {
k.options[i].style.display = 'none';
k.options[i].disabled = true;
}
}
}
document.getElementById('category_select').addEventListener("change", function () {
child_();
});
child_();
<select id="category_select">
<option value="">Please select</option>
<option value="1">Electronics</option>
<option value="2">Appliances</option>
</select>
<select id="type_select">
<option value="">Please select</option>
<option value="1">Phones</option>
<option value="1">Tablets</option>
<option value="2">Couch</option>
<option value="2">Refrigerator</option>
<option value="2">Vacuum</option>
</select>

If you want to be able to re-display them later, you can remove them by setting their CSS to display: none, and display them again with removeProperty('display').
You can also feel free to move child_ and parent outside of the listener, to reduce unnecessary nesting:
function parent_() {
return document.getElementById('category_select').value;
}
function child_() {
let k = document.getElementById('type_select');
for (let i = 0; i < k.options.length; ++i) {
if (k.options[i].value === parent_()) {
k.options[i].style.removeProperty('display');
} else if (k.options[i].value !== parent_()) {
k.options[i].style.display = 'none';
}
}
k.selectedIndex = 0;
}
document.getElementById('category_select').addEventListener("change", child_);
<select id="category_select">
<option value="">Please select</option>
<option value="1">Electronics</option>
<option value="2">Appliances</option>
</select>
<select id="type_select">
<option value="" disabled="">Please select</option>
<option value="1">Phones</option>
<option value="1">Tablets</option>
<option value="2">Couch</option>
<option value="2">Refrigerator</option>
<option value="2">Vacuum</option>
</select>

using <optgroup> will be easier to solve the problem.
removing the child will not append back to the select box; so we are hiding the selected item from child select box at a time.
here is the pseudo code
const parent_category = document.getElementById('category_select');
const child_category = document.getElementById('type_select');
const optgroup = child_category.querySelectorAll('optgroup');
let selectedNode;
parent_category.addEventListener("change", function(e) {
let selectedValue = e.target.value;
child_category.selectedIndex = -1; // deselect previouly selected option
if (selectedNode) {
selectedNode.hidden = false;
}
Array.from(optgroup).forEach((node) => {
let nv = node.getAttribute('value');
if (nv !== selectedValue) {
selectedNode = node;
node.hidden = true;
// if you remove the child than no way to append back to select box
// while (node.firstChild) {
// node.removeChild(node.firstChild);
// }
// child_category.removeChild(node);
}
});
});
<select id="category_select">
<option value="">Please select</option>
<option value="1">Electronics</option>
<option value="2">Appliances</option>
</select>
<select id="type_select">
<option value="" disabled="">Please select</option>
<optgroup label="Electronics" value="1">
<option value="P">Phones</option>
<option value="T">Tablets</option>
</optgroup>
<optgroup label="Appliances" value="2">
<option value="C">Couch</option>
<option value="R">Refrigerator</option>
<option value="V">Vacuum</option>
</optgroup>
</select>

html select element that its options depends on another select

I have two select element and I want to show some options in second select based on what user choose at first select.
consider first select have two options : a , b ...
if user choose 'a' from first select :
the second select optiones should be -> c , d ...
and if user choose 'b' from first select :
the second select optiones should be : e , f ...
I have done some coding but the problem is at the start when user doesnt choose any option from first select the second select is always empty(it should show c , d)
<!DOCTYPE html>
<html>
<body>
<select id="s1" required>
<option value="a">a</option>
<option value="b">b</option>
</select>
<select id="s2" required > </select>
<script>
document.getElementById("s1").onchange = function() {
document.getElementById('s2').disabled = false; //enabling s2 select
document.getElementById('s2').innerHTML = ""; //clear s2 to avoid conflicts between options values
var opt0 = document.createElement('option');
var opt1 = document.createElement('option');
if (this.value == 'a') {
opt0.textContent = "c";
opt1.textContent = "d";
document.getElementById('s2').appendChild(opt0);
document.getElementById('s2').appendChild(opt1);
} else if (this.value == 'b') {
opt0.textContent = "e";
opt1.textContent = "f";
document.getElementById('s2').appendChild(opt0);
document.getElementById('s2').appendChild(opt1);
}
};
</script>
</body>
</html>

If you can save the option values in a lookup object (or JSON):
function setOptions(select, values) {
for (var i = select.length = values.length; i--; )
select[i].innerText = values[i]
}
function value(select) { return select.value || select[0].value } // 1st item by default
var data = { 1: { 1.1: [1.11, 1.12], 1.2: [1.21, 1.22] },
2: { 2.1: [2.11, 2.12], 2.2: [2.21, 2.22], 2.3: [2.31, 2.32, 2.33] } }
s2.onchange = function() { setOptions(s3, data[value(s1)][value(s2)]) }
s1.onchange = function() { setOptions(s2, Object.keys(data[value(s1)])); s2.onchange() }
setOptions(s1, Object.keys(data)); s1.onchange(); // fill the options
<select id=s1 required size=3></select>
<select id=s2 required size=3></select>
<select id=s3 required size=3></select>

This code is based on JavaScript (No need for jQuery)
change Id name and value (x=="desire_value") according to your code
function myFunction() {
var x = document.getElementById("select1").value;
if (x == "3") document.getElementById("select2").style.display = "block";
else document.getElementById("select2").style.display = "none";
}
<select id="select1" onchange="myFunction()">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>
<select id="select2" style="display: none;">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>

You have to write the functionality outside of onchange(). Try the following:
document.getElementById("s1").onchange = function() {
document.getElementById('s2').disabled = false; //enabling s2 select
document.getElementById('s2').innerHTML = ""; //clear s2 to avoid conflicts between options values
var opt0 = document.createElement('option');
var opt1 = document.createElement('option');
if (this.value == 'a') {
opt0.textContent = "c";
opt1.textContent = "d";
document.getElementById('s2').appendChild(opt0);
document.getElementById('s2').appendChild(opt1);
} else if (this.value == 'b') {
opt0.textContent = "e";
opt1.textContent = "f";
document.getElementById('s2').appendChild(opt0);
document.getElementById('s2').appendChild(opt1);
}
};
let element = document.getElementById("s1");
let selOption = element.options[element.selectedIndex].value;
if(selOption == 'a'){
var opt0 = document.createElement('option');
var opt1 = document.createElement('option');
opt0.textContent = "c";
opt1.textContent = "d";
document.getElementById('s2').appendChild(opt0);
document.getElementById('s2').appendChild(opt1);
}
<select id="s1" required>
<option value="a">a</option>
<option value="b">b</option>
</select>
<select id="s2" required > </select>

Why don't you just put that hard coded...
<!DOCTYPE html>
<html>
<body>
<select id="s1" required>
<option value="a">a</option>
<option value="b">b</option>
</select>
<select id="s2" required >
<option value="c">c</option>
<option value="d">d</option>
</select>
<script>
document.getElementById("s1").onchange = function() {
document.getElementById('s2').disabled = false; //enabling s2 select
document.getElementById('s2').innerHTML = ""; //clear s2 to avoid conflicts between options values
var opt0 = document.createElement('option');
var opt1 = document.createElement('option');
if (this.value == 'a') {
opt0.textContent = "c";
opt1.textContent = "d";
document.getElementById('s2').appendChild(opt0);
document.getElementById('s2').appendChild(opt1);
} else if (this.value == 'b') {
opt0.textContent = "e";
opt1.textContent = "f";
document.getElementById('s2').appendChild(opt0);
document.getElementById('s2').appendChild(opt1);
}
};
</script>
</body>
</html>

One approach to contemplate is populating the dependant dropdowns with all values and use a data attribute for the parent-child relationship. Javascript then clones and removes the options for later insertion.
The functional javascript is now very lean and the dependency relationships are maintained in the DOM.
var s2Clone;
// Doesn't work in older IEs
//CLone the Dependant drop down and hide
document.addEventListener('DOMContentLoaded', function(){
s2Clone = document.getElementById("s2").cloneNode(true);
document.getElementById("s2").innerHTML = "";
}, false);
document.getElementById("s1").onchange = function() {
var selected = this.value;
//Get the nodes with a parent attribute of the selected data
var optionsToInsert = s2Clone.querySelectorAll("[data-parent='" + selected +"']");
//clear existing
var s2 = document.getElementById("s2");
s2.innerHTML = "";
//Add The new options.
for(i = 0; i < optionsToInsert.length; i++)
{
s2.appendChild(optionsToInsert[i]);
}
}
<select id="s1" required>
<option value="">Please select</option>
<option value="a">a</option>
<option value="b">b</option>
</select>
<select id="s2" required >
<option value="a1" data-parent="a">a - 1</option>
<option value="a2" data-parent="a">a - 2</option>
<option value="a3" data-parent="a">a - 3</option>
<option value="b1" data-parent="b">b - 1</option>
<option value="b2" data-parent="b">b - 2</option>
<option value="b3" data-parent="b">b - 3</option>
</select>

Filter options according to optgroup label text

I have one select box with a list of games and the other with filled with a list of consoles. Each game has the possibility to belong to a number of consoles. I'm looking to filter the second select box according to whichever game is selected in the first.
So for instance if I select a game like Forza Horizon that belongs to more than one console then the console select box would filter just those and hide the others.
Right now I have it setup where on a select event it captures the text value of the game. From there I figured to filter through their respective optgroup's label property, which is the console it belongs to. I just can't seem to figure out how to retrieve the other possible consoles it may belong to other than the selected option.
Fiddle
<select class="game-select">
<option value="">Select a game</option>
<optgroup label="PS4"></optgroup>
<option value="1">Forza Horizon 2</option>
<option value="2">The Last of Us</option>
<option value="3">Bioshock Infinite</option>
</optgroup>
<optgroup label="Xbox One">
<option value="1">Forza Horizon</option>
<option value="2">Halo</option>
<option value="3">Bioshock Infinite</option>
</optgroup>
</select>
<select class="console-select">
<option value="">Select a console</option>
<option value="1">PS4</option>
<option value="2">Xbox One</option>
</select>
JS
$(function() {
var gameConsoles = $(".console-select").html();
$(".game-select").on("change", function() {
var game = $(this).find("option:selected").text(),
options = gameConsoles.filter().html(); // Not sure how to filter
if (options) {
$(".console-select").html(options);
} else {
$(".console-select").empty();
}
});
});

Update 2
You can do something like this
$(function () {
var consoleSelect = $('.console-select'),
gameConsoleOptions = $('.console-select option');
$(".game-select").on("change", function () {
var selectedGame = $(this).find("option:selected").data('game'),
games = [],
selectedCategory = $(this).find("option:selected").closest('optgroup').attr('label');
if (selectedGame) {
games = $.makeArray($(this).find('option[data-game="' + selectedGame + '"]').map(function () {
return $(this).closest('optgroup').attr('label');
}));
}
if (games.length) {
gameConsoleOptions.hide();
gameConsoleOptions.filter(function (i, v) {
return games.indexOf($(v).text()) != -1;
}).show();
consoleSelect.find('option:contains('+selectedCategory+')').prop('selected', 'selected');
} else {
gameConsoleOptions.show();
}
});
});
Here is a demo http://jsfiddle.net/dhirajbodicherla/m178xpc3/11/
Update
I added a code to each game using the data-* attribute.
For example the below two games have the same data-game attribute which can be used to figure out that these two are of the same category.
<option value="1" data-game="FH">Forza Horizon 2</option>
<option value="2" data-game="FH">Forza Horizon</option>
Complete example
<select class="game-select">
<option value="">Select a game</option>
<optgroup label="PS4">
<option value="1" data-game="FH">Forza Horizon 2</option>
<option value="2" data-game="LU">The Last of Us</option>
<option value="3" data-game="BI">Bioshock Infinite</option>
</optgroup>
<optgroup label="Xbox One">
<option value="1" data-game="FH">Forza Horizon</option>
<option value="2" data-game="HA">Halo</option>
<option value="3" data-game="BI">Bioshock Infinite</option>
</optgroup>
</select>
<select class="console-select">
<option value="">Select a console</option>
<option value="1">PS4</option>
<option value="2">Xbox One</option>
</select>
This is the script
$(function () {
var gameConsoleOptions = $('.console-select option');
$(".game-select").on("change", function () {
var selectedGame = $(this).find("option:selected").data('game'), games = [];
console.log(selectedGame);
if (selectedGame) {
games = $.makeArray($(this).find('option[data-game="' + selectedGame + '"]').map(function () {
return $(this).closest('optgroup').attr('label');
}));
}
console.log(games);
if (games) {
gameConsoleOptions.hide();
gameConsoleOptions.filter(function (i, v) {
return games.indexOf($(v).text()) != -1;
}).show();
} else {
gameConsoleOptions.show();
}
});
});
Here is a demo http://jsfiddle.net/dhirajbodicherla/m178xpc3/10/
You can do something like this
$(function () {
var gameConsoleOptions = $('.console-select option');
$(".game-select").on("change", function () {
var label = $(this).find("option:selected").closest('optgroup').prop('label');
if (label) {
gameConsoleOptions.hide();
gameConsoleOptions.filter(function (i, v) {
return $(v).text() === label;
}).show();
}else{
gameConsoleOptions.show();
}
});
});
Here is a demo http://jsfiddle.net/dhirajbodicherla/m178xpc3/5/

The code should speak for itself but it all comes down to multiple jQuery filter functions and a clone of the set with options. One advice: Use data attributes instead of relying on the option element text. I updated the fiddle, see link below.
$(function() {
var gameConsoles = $(".console-select");
var consoleOptions = gameConsoles.find('option').clone();
var gameSelect = $(".game-select").on("change", function() {
var game = $(this).find("option:selected").text();
var filteredOptions = $();
gameSelect.find('optgroup').filter(function() {
return $(this).find('option').filter(function() {
return $(this).text() == game;
}).length;
}).each(function () {
var label = $(this).attr('label');
filteredOptions = filteredOptions.add(consoleOptions.filter(function() {
return $(this).text() == label;
}));
});
gameConsoles.html(filteredOptions);
});
});
Fiddle update

Is that what you wanted?
$(".game-select").on("change", function() {
var o = $('option:selected', $(this));
if (!o.val()) {
$('.game-select optgroup').show();
$('.console-select option').show();
return;
}
$('.console-select > option').hide();
var a = $('option:contains("' + o.text() + '")').filter(function() {
return $(this).text() == o.text();
}).each(function() {
var t = $(this);
var l = t.parent().attr('label');
$('.console-select option:contains("' + l + '")').filter(function() {
return l == $(this).text();
}).show();
});
});
$(".console-select").on("change", function() {
var o = $('option:selected', $(this));
if (!o.val()) {
$('.game-select optgroup').show();
$('.console-select option').show();
return;
}
$('.game-select optgroup').hide();
console.log($('.game-select optgroup[label="' + o.text() + '"]'));
$('.game-select optgroup[label="' + o.text() + '"]').show();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select class="game-select">
<option value="">Select a game</option>
<optgroup label="PS4">
<option value="c1">Forza Horizon 2</option>
<option value="c2">The Last of Us</option>
<option value="c3">Bioshock Infinite</option>
</optgroup>
<optgroup label="Xbox One">
<option value="s1">Forza Horizon</option>
<option value="s2">Halo</option>
<option value="s3">Bioshock Infinite</option>
</optgroup>
</select>
<select class="console-select">
<option value="">Select a console</option>
<div>
<option value="c">PS4</option>
<option value="s">Xbox One</option>
</div>
</select>

Compose a link based in select's option value

I have 2 dropdown menus, and I need to compose a link with it's values.
Here is the code:
<form id="dropdown1">
<select id="linha">
<option value="G12">Option 1</option>
<option value="G11">Option 2</option>
<option value="H89">Option 3</option>
</select>
<select id="dia">
<option value="all">Every day</option>
<option value="work">working days</option>
<option value="sat">saturday</option>
<option value="sun">sunday</option>
</select>
</form>
I need something in JavaScript to "compose" a link with http://somewebsite.com/*selected_linha_value*/*selected_dia_value*
How can I do that?

<select name="dia" id="dia">
<option value="all">Every day</option>
<option value="http://stackoverflow.com">working days</option>
<option value="http://anotherSite.com">saturday</option>
<option value="http://anotherSite2.com">sunday</option>
</select>
<script>
$("#dia").change(function () {
var selctedValue = "";
$("select option:selected").each(function () {
selctedValue += $(this).val();
window.location.href = selctedValue;
});
});

i think u need something like this.
<script type="text/javascript">
params = getParams();
var name1 = unescape(params["linha"]);
switch(name1)
{
case "g12":
window.location = "http://www.google.com"
}
function getParams(){
var idx = document.URL.indexOf('?');
var params = new Array();
if (idx != -1) {
var pairs = document.URL.substring(idx+1, document.URL.length).split('&');
for (var i=0; i<pairs.length; i++){
nameVal = pairs[i].split('=');
params[nameVal[0]] = nameVal[1];
}
}
return params;
}
Its not the full code. It will give you some idea. If you have any doubt just comment

Take a look at: http://jsfiddle.net/ERHhA/
You can use jQuery val() to get the value of the select boxes. Then just append these values to the base url.
var url = "http://somewebsite.com/" + $('#linha').val() + "/" + $('#dia').val();

What about this one?
function make_url(){
var linha = document.getElementById('linha').value;
var dia = document.getElementById('dia').value;
var url=window.location.href;
var pos=url.indexOf('?');
if (pos>-1){
url = url.substr(0,pos);
}
//alert(url + '?linha='+linha+'&dia='+dia); return;
document.location.href = url + '?linha='+linha+'&dia='+dia;
}
fiddle

HTML
<div class="container">
<select class="small-nav">
<option value="" selected="selected">Go To</option>
<option value="http://whiterabbitexpress.com">Services</option>
<option value="http://shop.whiterabbitjapan.com">Shop</option>
</div><!-- container -->
JScript:
$(".small-nav").change(function() {
window.location = $(this).find("option:selected").val();
});