How Can I Assign A Unique Id To All Div's That Have A Specific Class Using Jquery
Solution 1:
Get all the div with class owl-item inside the container with id sample_slider.
Use jQuery each to cycle to all these elements and set as attribute the slide- prefix and the current index + 1 if you want to start from 1, remove the +1 if you want to start from 0
$.each($('#sample_slider div.owl-item'), function(ind) {
$(this).attr('id', 'slide-' + parseInt(ind + 1));
});
Solution 2:
This does what you are asking. It finds all elements with the owl-item class and then adds the appropriate ID to that element. I might suggest using my second example - adding a class rather than ID.
//Iterate through each element with the class of 'owl-item'
$('.owl-item').each(function(eachCounter){
//Add an ID to each element (slide-#) (eachCounter starts at 0, so add 1)
$(this).attr("id", "slide-"+parseInt(eachCounter+1));
});
This example adds a class rather than an ID. I think this is a better solution.
//Iterate through each element with the class of 'owl-item'
$('.owl-item').each(function(eachCounter){
//Add a class to each element (slide-#) (eachCounter starts at 0, so add 1)
$(this).addClass("slide-"+parseInt(eachCounter+1));
});
Solution 3:
I would do something like this:
$(document).ready(function() {
$(".owl-item").each(function(i) {
$(this).attr('id', "owl-item" + (i + 1));
});
});
Should output unique ID selectors for you to use, such as:
#owl-item1,#owl-item2,#owl-item3 {
color: $pink; // sample
}
Solution 4:
Your code works, although, you're using a wrong selector (#sample_slider div).
You need to target .owl-item instead.
So, you should do something like this:
$('div.owl-item').each(function(eq, el) {
el = $(el);
if (typeof(el.attr('id')) === "undefined") {
el.prop('id', 'div-' + eq);
console.log(el.prop('id'));
}
});<scriptsrc="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script><divclass="owl-item"></div><divclass="owl-item"></div><divclass="owl-item"></div><divclass="owl-item"></div><divclass="owl-item"></div><divclass="owl-item"></div>You should also use .prop() instead of .attr().
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