I'm trying to do a filter that will show or hide <div> regarding the data-type they have in their tags.
Here is my Javascript :
var course_difficulty_level_filter= function(el,level)
{
this.el = el;
this.el.closest('#courses_content').find("div").hide();
if(level != "00"){
this.el.closest('#courses_content').find('div[data-difficulty="'+level+'"]').show();
console.log("show difficulty_level : "+ level);
} else {
this.el.closest('#courses_content').find("div").show();
console.log("show difficulty_level : all");
};
}
$('#course_filter_level1').click(function(){
$(this).click(course_difficulty_level_filter($(this),"1"));
});
And here is my HTML :
<div id="coursefilter">
<div id="coursefilter_content" class="hide">
<div id="coursefilter_content_text">
<div id="course_filter_level_text"><p class="course_filter">Level: </p></div>
</div>
<div id="coursefilter_content_icons">
<div id="course_filter_level">
<div id="course_filter_level1" class="opacityquarter">
<div id="level1_rectangle1"></div>
<div id="level1_rectangle2"></div>
<div id="level1_rectangle3"></div>
<div id="level1_rectangle4"></div>
</div>
</div>
</div>
</div>
</div>
<!--Courses - Course Overviews-->
<div id="courses">
<div id="courses_content" class="hide">
<div class="course_overview_content_even" data-difficulty="1" data-lang="en"></div>
</div>
</div>
I successfully get the console.log => show difficulty_level : 1, so my script is "working", but I think it can't navigate trough the DOM, but I don't find why.
Are you simply looking for:
$('div[data-difficulty="'+level+'"]').show();
$('div[data-difficulty="'+level+'"]').hide();
jQuery has rich support for querying HTML attibutes: http://api.jquery.com/category/selectors/attribute-selectors/
I think this code is the problem:
this.el.closest('#courses_content')
The closest function works back up the parents to find the selector, but #courses_content is not a parent of #course_filter_level1 (the value passed in as el).
Try changing those references to just be:
$('#courses_content')
There should be no need to find this element relative to the passed in element as I hope there is only one div with the id courses_content as ID's are supposed to be unique within the document.
The whole function can be changed to this:
// removed el, so it must be removed from the calling function
var course_difficulty_level_filter= function(level)
{
var coursesContent = $('#courses_content');
coursesContent.find("div").hide();
if(level != "00"){
coursesContent.find('div[data-difficulty="'+level+'"]').show();
console.log("show difficulty_level : "+ level);
} else {
coursesContent.find("div").show();
console.log("show difficulty_level : all");
};
}
Related
I need some help.. the idea behind this is like a simple toggle button that can hide the object and replacing the empty area with ****.
I was thinking it was more like in a Password form input where you can hide password by clicking the Eye icon. However, I needed something that are not required input form, something that is just simple DIV
function toggler(divId) {
$("#" + divId).toggle();
.css('content', 'sadas');
}
.hidden {
display:none;
}
this is a test
<div id="myContent" class='hidden'>
<div>this is a test #1 </div>
</div>
I can hide the DIV but leaving the empty area, how can I replace this empty area with ***** ??
example:
My balance is $200 [hide]
My balance is **** [show]
https://jsfiddle.net/qobgfLh6/
I have written a fiddle.
There are some points that can be better managed.
But I think you are looking for something like that.
The idea is to add another div with the **** placeholder and use toggleClass() function of jQuery.
$("#" + divId).toggleClass('hidden');
$("#myPlaceholder").toggleClass('hidden');
https://jsfiddle.net/qze8fydv/
Try to use something like this.
$(document).ready(function () {
function handle(input, toggler) {
var inputValue = ""
var shouldShowAsterisks = false
input.change(function () {
inputValue = $(this).val()
})
toggler.click(function () {
shouldShowAsterisks = !shouldShowAsterisks
shouldShowAsterisks
? input.val("*".repeat(inputValue.length))
: input.val(inputValue)
input.prop("disabled", shouldShowAsterisks)
})
}
handle($(".enter"), $(".toggler"))
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input type="text" class="enter" />
<button class="toggler">Hide</button>
function toggleElementMask(element){
//Regex to find *
let reg = /^\*+$/g;
//If all * we are masked
let isMasked = element.innerText.match(reg);
if(!isMasked) {
//Store the original text
element.dataset.original = element.innerText;
//Replace the contente with the same amount of *
element.innerText = "*".repeat(element.innerText.length);
}else{
//Restore the text
element.innerText = element.dataset.original;
}
}
//Mask on page load
$(".masked").each(function(){
toggleElementMask(this);
});
//Click event handler
$(".toggleMask").on("click", function(e){
e.preventDefault();
toggleElementMask($($(this).attr("href"))[0]);
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
this is a test
<div id="myContent" class='masked'>
<div>this is a test #1 </div>
</div>
this is a test
<div id="myContent2" class='masked'>
<div>Another one</div>
</div>
this is a test
<div id="myContent3" class='masked'>
<div>one with <span>a</span> span</div>
</div>
I have a function which accepts two parameters, each of type HTML element. It is supposed to return which element appears first in the document order. Is there any simple way to determine this?
Template -
<body>
<div id="div1">
<div id="div2">
</div>
</div>
<div id="div3">
<div id="div4">
</div>
</div>
</body>
JS -
const elem1 = document.getElementById('div2');
const elem2 = document.getElementById('div4');
const firstAppearingElement = checkOrder(elem1, elem2); // it should return elem1
function checkOrder(element1, element2) {
// check which one appears first in dom tree
}
You can try with Node.compareDocumentPosition()
The Node.compareDocumentPosition() method compares the position of the
given node against another node in any document.
The syntax is object.compareDocumentPosition (nodeToCompare);
let first = document.getElementById('a');
let second=document.getElementById('b');
// Because the result returned by compareDocumentPosition() is a bitmask, the bitwise AND operator has to be used for meaningful results.See link above for more
if (first.compareDocumentPosition(second) & Node.DOCUMENT_POSITION_FOLLOWING) {
console.log('element with id a is before element with id b'); //
} else {
console.log('element with id a is after element with id b');
}
<div id="a"></div>
<div id="b"></div>
I have an array of numbers which I need to target on pages like this:
sku = [1243,3453,6453, ..... ]
These values are inside a div on a page like this:
<div id="product_1243">
<div class="block">
test
</div>
</div>
<div id="product_3453">
<div class="block">
test
</div>
</div>
<div id="product_6453">
<div class="block">
test
</div>
</div>
I have created a function to check if a number from the array exists in this div:
sku.forEach(function (element) {
if ($("div[id*='product_item_code_" + element +"']").length) {
alert("this exists" + element);
}
});
This works, but I want to ask two questions:
1) How to use insertAfter below to insert some HTML after each <div class="block">. It should only get inserted if the statement is true of course.
$("<p>test!</p>").insertAfter(....);
2) if this is best for performance because my array is actually much much bigger with over 1000 values to check for in the forEach.
Thanks
Use append or appendTo if block is the only child of product_***
var $el = $("div[id*='product_item_code_" + element +"']");
if ( $el.length) {
alert("this exists" + element);
$("<p>test!</p>").appendTo( $el );
}
or
var $el = $("div[id*='product_item_code_" + element +"']");
if ( $el.length) {
alert("this exists" + element);
$el.append( "<p>test!</p>" )
}
In case block is not the only child
var $el = $("div[id*='product_item_code_" + element +"']");
if ( $el.length) {
alert("this exists" + element);
$("<p>test!</p>").insertAfter( $el.find( ".block" ) );
}
How about this? Store products instead of querying it each time as it affects performance.
const products = $('div[id^=product_item_code]')
products.each((index, element) => {
if(sku.includes(element.id.split('_')[1]))
$('.block', element).after('<p>test!</p>')
})
Consider the following snippet as an example:
<div class="bar foo">
</div>
<div class="bar">
<div class="foo"></div>
</div>
Given var $set=$('.bar'); I need to select both nodes with foo class. What is the proper way to achieve this. Considering addBack() requires a selector and here we need to use the $set jQuery object and $set.find('.foo') does not select the first node.
use this :
var $set = $(".bar").filters(function () {
var $this = $(this);
if($this.is(".foo") || $this.find(" > .foo").length !== 0){
return true;
} else{
return false;
}
});
Here's one way of going about it:
var set = $('.bar');
var foos = [];
for (var i = 0; i < set.length; i++) {
if ($(set[i]).hasClass('foo')) {
foos.push(set[i]);
}
}
if (set.find('.foo').length !== 0) {
foos.push(set.find('.foo')[0]);
}
console.log(foos);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="bar foo"></div>
<div class="bar">
<div class="foo"></div>
</div>
The for loop checks all elements picked up with jQuery's $('.bar'), and checks if they also have the foo class. If so, it appends them to the array. The if checks if any of the elements picked up in set have any children that have the foo class, and also adds them.
This creates an array that contains both of the DIVs with the foo class, while excluding the one with just bar.
Hope this helps :)
test this :
var $newSet = $set.filter(".foo").add($set.has(".foo"));
You could use the addBack() function
var $set=$('.bar');
console.log($set.find(".foo").addBack(".foo"));
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="bar foo">
</div>
<div class="bar">
<div class="foo"></div>
</div>
There is one accordian in YUI and I want element id of the element which height is more than 0px.
Here is some part of code
<div class="accordian">
<div id="item1" class="yui3-widget-bd"></div>
<div id="item2" class="yui3-widget-bd"></div>
</div>
and javaScript
YUI().use("node", function(Y) {
Y.all('.yui3-widget-bd').each(function(node) {
accHeight = node.get("offsetHeight");
alert("this is height " + accHeight);
if (accHeight > 0) {
alert("inside if");
alert(node.get("ID"));
}
else {
alert("in else condition");
}
});
})
Instead of getting "Item1 " alert. I am getting "undefined"
Working example on JSFiddle
It is case sensitive. id should be lower case.
node.get("id")