Identifying and Using CSS Selectors in jQuery

css selectors in jquery
10 November 2024

CSS selectors in jQuery are one of the best tools for manipulating different DOM elements on a web page. By using these selectors, you can easily select desired elements and apply specific actions to them. jQuery allows you to simply access HTML elements using similar CSS selectors.

Depending on the type of operations you want to perform, selectors can be intensively used. For example, if you want to adjust the color of all paragraphs, you can easily achieve this by using CSS selectors for that purpose.

In addition to basic selectors like class and id, there are other selectors such as attribute selectors that can provide higher performance in your projects. Using this type of selector in jQuery allows you to execute many complex operations easily without the need for writing additional code.

If you are familiar with any of the CSS selectors, you can easily use multiple small changes in their syntax to call all of these selectors in jQuery as well. For example, selecting an element by a specific id in jQuery can be done like $('#myId'), which closely resembles the syntax in CSS.

Below are several examples of codes you can use to select different elements using jQuery:


// Selecting an element with a specific id 
$("#myId").css("color", "red");
// Selecting elements with a specific class
$(".myClass").hide();
// Selecting elements with a specific tag and value
$("input[type='text']").val("Hello");
// Selecting all paragraphs
$("p").css("background-color", "yellow");

Here we will explain line by line code:

$("#myId").css("color", "red");
By using this code, an element with the id corresponding to "myId" is selected and its text color is changed to red.

$(".myClass").hide();
This line hides all elements with the class "myClass".

$("input[type='text']").val("Hello");
By using this code, all input elements of type text are selected, and their value is changed to "Hello".

$("p").css("background-color", "yellow");
This line selects all paragraphs on the page and changes their background color to yellow.

FAQ

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How can I select an element with a specific id in jQuery?

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How can I hide all elements with a specific class?

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How similar are jQuery selectors to CSS selectors?