How to use eq in jquery
This article introduces the knowledge of "how to use eq in jquery". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!
Eq means: 1, ": eq ()" selector, this selector can select the element with the specified index value, syntax is "$(": eq (index) ")"; 2, "eq ()" traversal method, this method can return the element with the specified index number of the selected element, the syntax is "$(element) .eq (index)".
The operating environment of this tutorial: windows10 system, jquery3.2.1 version, Dell G3 computer.
What does eq mean in jquery
1. It represents the eq () selector.
The eq () selector selects the element with the specified index value.
The index value starts at 0, and the index value for all the first elements is 0 (not 1).
It is often used with other elements / selectors to select elements with a specific ordinal number in a specified group.
Examples are as follows:
$(document) .ready (function () {$("p:eq (1)") .css ("background-color", "# B2E0FF");}); Welcome to My HomepageMy name is Donald
I live in Duckburg
My best friend is Mickey
Who is your favourite:GoofyMickeyPluto
Output result:
2. It represents the eq () traversal method.
The eq () method returns the element with the specified index number of the selected element.
The index number starts with 0, so the index number of the first element is 0 (not 1).
Examples are as follows:
(document) .ready (function () {$("p") .eq (1) .css ("background-color", "yellow");}); Welcome to my homepage
My name is Donald (subscript 0).
Donald Duck (index 1).
I live in Duckburg (index 2).
My best friend is Mickey (index 3).
Output result:
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