How to show content (<div>) as per selection options (<select>)? - javascript

I want to show content based on user's selection from <select> <option>.
Like, when user selects the <option value="Option A"> then only show the <div> containing "Orange".
HTML:
`
<div id="main-container">
<select name="" id="user-selector" class="selector-dropdown">
<option selected="true" style='display: none'>Select</option>
<option value="Option A">Fruit</option>
<option value="Option B">Animal</option>
<option value="Option C">Language</option>
<option value="Option C">Stationary</option>
</select>
<div class="output">Orange</div>
<div class="output">Lion</div>
<div class="output">English</div>
<div class="output">Pen</div>
</div>
`
I have searched in codepen, stackoverflow, and most were using jQuery which i couldn't understand.
It's been 2 days I've started learning JS. It really helps if you can help me the JS code.
Thanks in advance!

What you will need to do is create an event listener for the select that listens for its change.
I created a class called active that will show the div. By default I have css style for output that sets it as display none.
Then in the event listener, the first thing I do is remove the active class if it exists.
Also I add the value of the options as data attributes to the divs. This allows you to reference that div.
Then simply add the new active class to that div.
let selector = document.querySelector(".selector-dropdown");
selector.addEventListener("change", (e) => {
let active = document.querySelector(".output.active");
if (active) active.classList.remove("active");
let _target = document.querySelector("[data-option='" + e.target.value + "']")
if (_target) _target.classList.add("active");
});
.output {
display: none;
}
.output.active {
display: block;
}
<div id="main-container">
<select name="" id="user-selector" class="selector-dropdown">
<option selected="true" style='display: none'>Select</option>
<option value="Option A">Fruit</option>
<option value="Option B">Animal</option>
<option value="Option C">Language</option>
<option value="Option D">Stationary</option>
</select>
<div data-option="Option A" class="output">Orange</div>
<div data-option="Option B" class="output">Lion</div>
<div data-option="Option C" class="output">English</div>
<div data-option="Option D" class="output">Pen</div>
</div>

Related

Multiple drop down boxes?

I'm trying to get multiple drop down boxes to open when selecting different prompts from an original drop down menu.
So for example the original drop box would say "Continent" then drop down to a list of continents, when you select a continent a new box opens that asks you "Country" then you select a country and a new drop box opens to select a state.
I've been using this template
<script type="text/javascript">
function CheckDepartment(val){
var element=document.getElementById('othercolor');
if(val=='others')
element.style.display='block';
else
element.style.display='none';}
function CheckOption(val){
var element=document.getElementById('misc')
if(val=='misc')
element.style.display='block';
else
element.style.display='block';
}
</script>
</head>
<body>
<select name="color" onchange='CheckDepartment(this.value);'>
<option>pick a color</option>
<option value="red">RED</option>
<option value="blue">BLUE</option>
<option value="others">others</option>
</select>
<select name="othercolor" id="othercolor" onchange='CheckOption(this.value)' style='display:none;'/>
<option value=""></option>
<option value="hi">hi</option>
<option value="misc" id="misc" >misc</option>
</select>
<select name="third" style='display:none;'>
<option value=""></option>
<option value="first">first</option>
<option value="second">second</option>
</select>
but I can't get a third drop box to open when selecting an option from the second drop box.
edit: third box. I think i deleted my last try so this was kinda a recreation of it from what I remembered. I'm also incredibly new at all of this and don't know if anything I tried makes sense.
Here's a simplified demo.
(It assumes only a "yes" value should trigger the display of the next dependent dropdown.)
const
select1 = document.getElementById("select1"),
select2 = document.getElementById("select2");
document.addEventListener("change", handleDropdownDisplay);
function handleDropdownDisplay(event) {
let changedElement = event.target;
if ((changedElement != select1) && (changedElement != select2)) {
return;
}
if (changedElement.value == "yes") {
changedElement.parentElement.nextElementSibling.classList.remove("hidden");
} else {
changedElement.parentElement.nextElementSibling.classList.add("hidden");
}
}
div {
margin-bottom: 0.5em;
}
.hidden {
display: none;
}
<div>
<label for="select1">Show level 2?</label>
<select id="select1">
<option value="no">No</option>
<option value="yes">Yes</option>
</select>
</div>
<div class="hidden">
<label for="select2">Show level 3?</label>
<select id="select2">
<option value="no">No</option>
<option value="yes">Yes</option>
</select>
</div>
<div class="hidden">
<label for="select3">Would your rather</label>
<select id="select3">
<option value="brains">Eat monkey brains</option>
<option value="vba">Write code in VBA</option>
</select>
</div>
(Btw, level 3 doesn't automatically become hidden whenever level 2 becomes hidden. This is probably functionality you'll want to add.)

Show hide multiple divs based on select value

Looking for some jQuery to help hide and reveal content in a simple form I'm creating.
Picking options 1-3 in the select field should show one of the three data response divs as well as reveal the content in the rest of the form (data-form-order 2).
I think data attributes would be a good route to go down but a little unsure of where to start.
<form>
<div data-form-order="1">
<div id="opening-question">
<select id="select-box">
<option value="0">- please select -</option>
<option value="1">Option 1</option>
<option value="2">Option 2</option>
<option value="3">Option 3</option>
</select>
</div>
<div data-response="op1">
This is content for option 1.
</div>
<div data-response="op2">
This is content for option 2.
</div>
<div data-response="op3">
This is content for option 3.
</div>
</div>
<div data-form-order="2" id="other-questions">
Rest of form content. This area should show when option values 1-3 are selected in the select field.
</div>
</form>
I highly recommend reading Decoupling Your HTML, CSS, and JavaScript. You can make some really simple and reusable jQuery that does some pretty cool stuff, without a lot of duplicate code or tightly coupled code. The following is very extensible, reusable, easy to read and maintain.
$(document).ready(()=>{
$('.js-revealer').on('change', function(){
var $select = $(this);
var $selected = $select.find('option:selected');
var hideSelector = $selected.data('r-hide-target');
var showSelector = $selected.data('r-show-target');
$(hideSelector).addClass('is-hidden');
$(showSelector).removeClass('is-hidden');
});
});
.is-hidden{
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
<div data-form-order="1">
<div id="opening-question">
<select id="select-box" class="js-revealer">
<option value="0" data-r-show-target="" data-r-hide-target=".opt-1, .opt-2, .opt-3, .opt-other">- please select -</option>
<option value="1" data-r-show-target=".opt-1, .opt-other" data-r-hide-target=".opt-2, .opt-3">Option 1</option>
<option value="2" data-r-show-target=".opt-2, .opt-other" data-r-hide-target=".opt-1, .opt-3">Option 2</option>
<option value="3" data-r-show-target=".opt-3, .opt-other" data-r-hide-target=".opt-1, .opt-2">Option 3</option>
</select>
</div>
<div data-response="op1" class="opt-1 is-hidden">
This is content for option 1.
</div>
<div data-response="op2" class="opt-2 is-hidden">
This is content for option 2.
</div>
<div data-response="op3" class="opt-3 is-hidden">
This is content for option 3.
</div>
</div>
<div data-form-order="2" id="other-questions" class="opt-other is-hidden">
Rest of form content. This area should show when option values 1-3 are selected in the select field.
</div>
</form>
Really all you need is to hide all the divs using some CSS by default, and then use the change function to get the value and select the div based on that value:
$('#select-box').change(function(){
var selectVal = $(this).val();
$('.content, #other-questions').hide();
$('.content[data-response="op' + selectVal + '"], #other-questions').show();
});
.content, #other-questions {
display: none;
}
<script src="//code.jquery.com/jquery-3.2.1.min.js"></script>
<form>
<div data-form-order="1">
<div id="opening-question">
<select id="select-box">
<option value="0">- please select -</option>
<option value="1">Option 1</option>
<option value="2">Option 2</option>
<option value="3">Option 3</option>
</select>
</div>
<div class="content" data-response="op1">
This is content for option 1.
</div>
<div class="content" data-response="op2">
This is content for option 2.
</div>
<div class="content" data-response="op3">
This is content for option 3.
</div>
</div>
<div data-form-order="2" id="other-questions">
Rest of form content. This area should show when option values 1-3 are selected in the select field.
</div>
</form>
I've updated my answer to include classes which are better for selecting elements than data attributes.
I would suggest using classes for this, there is no need for data attributes.
$(function() {
$('#select-box').change(function(){
if($('#select-box').val() == '1') {
$('.response1').show();
$('.response2').hide();
$('.response3').hide();
$('#content').show();
}
else if($('#select-box').val() == '2') {
$('.response1').hide();
$('.response2').show();
$('.response3').hide();
$('#content').show();
}
else if($('#select-box').val() == '3') {
$('.response1').hide();
$('.response2').hide();
$('.response3').show();
$('#content').show();
}
});
});
.response1, .response2, .response3 {
display: none;
}
#content {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
<div data-form-order="1">
<div id="opening-question">
<select id="select-box">
<option value="0">- please select -</option>
<option value="1">Option 1</option>
<option value="2">Option 2</option>
<option value="3">Option 3</option>
</select>
</div>
<div class='response1' data-response="op1">
This is content for option 1.
</div>
<div class='response2' data-response="op2">
This is content for option 2.
</div>
<div class='response3' data-response="op3">
This is content for option 3.
</div>
</div>
<div id='content' data-form-order="2" id="other-questions">
Rest of form content. This area should show when option values 1-3 are selected in the select field.
</div>
</form>
I have shown show/hide using Class . Initially hide all div's , shown on drop down selection (only matches div).Here is how.I have created two classes hide
to hide the element and show to show the element.
$('[data-response^=op]').attr('class',"hide");//Initially set all div hidden
$("#select-box").on("change",function(){
var value = $(this).val();
if(value !="" && value<=3 && value !=0){
console.clear();// to clear older logs.
console.log('Selected value'+$(this).val());
$('[data-response^=op]').attr('class',"hide");//On change hide all div's
var selector = "op"+value;
$(document).find("[data-response='"+selector+"']").attr('class',"show");
$("#other-questions").attr('class',"show");//Show matching div.
}else{
$("#other-questions").attr('class',"hide");
$('[data-response^=op]').attr('class',"hide");
}
})
.hide{
display:none;
}
.show{
display:block;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
<div data-form-order="1">
<div id="opening-question">
<select id="select-box">
<option value="0">- please select -</option>
<option value="1">Option 1</option>
<option value="2">Option 2</option>
<option value="3">Option 3</option>
</select>
</div>
<div data-response="op1">
This is content for option 1.
</div>
<div data-response="op2">
This is content for option 2.
</div>
<div data-response="op3">
This is content for option 3.
</div>
</div>
<div data-form-order="2" id="other-questions" class="hide">
Rest of form content. This area should show when option values 1-3 are selected in the select field.
</div>
</form>

How to fire click event on select drop down

I have following code for drop down select showing drop down list using text and values.i google many codes as possible but none of them worked.what i wanted to show the selected drop down menu item in alert dialog.I already tried jquery and javascript codes but they are not working please help me to out of this problem
<div class="col-sm-1"></div>
<div class="col-sm-3">
<div class="fleft " id="drop-down">
<select id="cd-dropdown" class="cd-select" >
<option value="1" >Home</option>
<option value="2" >Movies</option>
<option value="3" >T.V. Shows</option>
<option value="4" >Photos</option>
<option value="5" >Site Help</option>
</select>
</div>
</div>
Using JQuery, you could do something like this:
$('#cd-dropdown').bind('change', function () {
alert($(this).find('option:selected').text());
});
If you want the value instead of the text, use .val()
on changing
$(document).ready(function(){
$("#cd-dropdown").change(function(){
alert($(this).find('option:selected').val()); // val or text
});
});
or on loading
$(document).ready(function () {
alert($("#cd-dropdown").find('option:selected').val()); // val or text
});
Updated link
HTML code:
<div class="col-sm-1"></div>
<div class="col-sm-3">
<div class="fleft " id="drop-down">
<select id="cd-dropdown" class="cd-select" onmousedown="this.value='';" onchange="jsFunction(this.value);" >
<option value="1" >Home</option>
<option value="2" >Movies</option>
<option value="3" >T.V. Shows</option>
<option value="4" >Photos</option>
<option value="5" >Site Help</option>
</select>
</div>
</div>
JS code:
function jsFunction(value)
{
alert(value);
}
You can do so using jQuery like this
$(document).on('change',"#cd-dropdown", function(){
alert($(this).val()); // will display selected option's value
alert($(this).find('option:selected').text()); //will display selected option's text
});

How do I select a specific option value from a drop down list to show a hidden div?

I have a drop down list that has 4 options, so what I want is when I click on the value "from" it shows a hidden div (used CSS to hide this div "display: none;"). anyone can help me with that? THANKS!
Html:
<select id="type">
<option value="">--select--</option>
<option value="category">Category</option>
<option value="brand_name">Brand</option>
<option value="campaign_name">Campaign</option>
<option value="from">Recap date</option>
</select>
</label>
<div id="showfrom">
<input type="text" class="filter" value="02-16-2012" id="from">
</div>
Js:
$("#type").change(function() {
var selected = $(this).find(':selected').val();
if (selected == from) {
$("#showfrom").show();
}
});
from should be a string literal. Also you need to hide if something else is selected so better if you can use .toggle()
$("#type").change(function () {
$("#showfrom").toggle(this.value == 'from');
}).change();//to set the initial state
Demo: Fiddle

Jquery/Js: Hide/Show Divs based on select box option values

These are Dynamic dependent select controls. The sets of values of (1-3, 4-6, 7-9) determine the use hide/show divs function. The problem is the function i have only hide/show depending on the div id. How can i make the function hide/show div depended on the values(1-3, 4-6, 7-9) found in the selectbox?
Jquery
$('#select').change(function() {
$('#sub1, #sub2, #sub3').hide();
$('#sub' + $(this).find('option:selected').attr('id')).show();
});
Html Setup
<html>
<select size="6" id="category">
<option value="">categories 1-3 </option>
<option value="">----</option>
<option value="">----</option>
</select>
<div id="sub1" style="display:none">
<select name="subc1" size="6">
<option value="1">subcategories 4-6</option>
<option value="2">---</option>
<option value="3">---</option>
</select>
</div>
<div id="sub2" style="display:none">
<select name="subc2" size="6">
<option value="4">subcategories 7-9</option>
<option value="5">----</option>
<option value="6">----</option>
</select>
</div>
<div id="sub3" style="display:none">
<select name="subc3" size="6">
<option value="7">End</option>
<option value="8">----</option>
<option value="9">----</option>
</select>
</div>
</html>
select the value from drop down change function and do the operation depends on the value of drop down, following is the sample code
$(function() // Shorthand for $(document).ready(function() {
$('select').change(function() {
if($(this).val() == 1)
{
$('#sub1').hide();
$('#sub2').show();
}
});
});
You nee to change minor change in your category select
<select size="6" id="category">
<option value="1">categories 1-3 </option>
<option value="2">----</option>
<option value="3">----</option>
</select>
$('select#category').on('change', function() {
$('div[id=^sub]:visible').hide();
$('div#sub' + this.value).show();
});
can also use .change() instead of .on('change').
$('select#category').change(function() {
$('div[id=^sub]:visible').hide();
$('div#sub' + this.value).show();
});
NOTE:
$('div[id=^sub]:visible') will point to all divs that have id start with sub and visible.
You are trying with $('#select') which need to be $('#category') or $('select#category').
According to your comment:
Complete solution will look like following:
function isOnlyDashed(text) {
return text.replace(/-/g, '').length === 0;
}
$('select#category').change(function() {
var text = $('option:selected', this).text();
if (!isOnlyDashed(text)) {
$('div[id=^sub]:visible').hide();
$('div#sub' + this.value).show();
}
});
$('select[name^=subc]').change(function() {
var text = $('option:selected', this).text();
if (!isOnlyDashed(text)) {
$(this).parent() // jump to parent div
.next('div[id^=sub]:hidden') // go to next hidden div
.show();
}
});
Complete Workout
The problem with your code is that you have an incorrect selector.
$('#select')...
should be
$('select')...
Also, this part is wrong
$('#sub' + $(this).find('option:selected').attr('id')).show();
Replace it with this
$('#sub' + $(this).val()).show();
Finally, having different elements with the same name/id "sub1" is probably a bad idea, though technically not illegal. It is certainly confusing.
working demo http://jsfiddle.net/FwBb2/1/
I have made minor changes in your Jquery code as well as added value in your first select drop-down list which was missing rest hope this helps.
Please lemme know if I missed anything! B-)
code
$('select').change(function() {
$('#sub1, #sub2, #sub3').hide();
$('#sub' + $(this).val()).show();
});​
HTML
<html>
<select id="category">
<option value="1">categories 1-3 </option>
<option value="2">----</option>
<option value="3">----</option>
</select>
<div id="sub1" style="display:none">
<select name="subc1" size="6">
<option value="1">subcategories 4-6</option>
<option value="2">---</option>
<option value="3">---</option>
</select>
</div>
<div id="sub2" style="display:none">
<select name="subc2" size="6">
<option value="4">subcategories 7-9</option>
<option value="5">----</option>
<option value="6">----</option>
</select>
</div>
<div id="sub3" style="display:none">
<select name="subc3" size="6">
<option value="7">End</option>
<option value="8">----</option>
<option value="9">----</option>
</select>
</div>
</html>​

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