Table of contents
1.
Introduction🥸
2.
jQuery Focus Method 🧑‍💻
3.
Frequently Asked Questions 
3.1.
Is JQuery a programming language or library?
3.2.
Does jQuery HTML support XML and HTML documents equally?
3.3.
What distinguishes jQuery's ID selector from its class selector?
3.4.
Use of jQuery connect?
3.5.
What makes using jQuery necessary, exactly?
4.
Conclusion
Last Updated: Mar 27, 2024
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jQuery Focus

Author Anshit Kumar
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Introduction🥸

In this article will discuss the jQuery Focus Method, why it is used, and how to apply it in HTML.

First, let’s start discussing what JQuery is. This is an essential tool used in designing the front end. JQuery is used to simplify, shorten and beautify the codes written in javascript. JQuery also plays an important role in DOM manipulation. DOM manipulation includes changing HTML elements, CSS elements, zooming in elements, zooming out elements, animating elements, and many more.     

Intro to jQuery

Basically, its purpose is to make JS(Javascript) easier to use on websites.

jQuery Focus Method 🧑‍💻

It is a method that jQuery includes by default that is used to spotlight an element.

We can target the element by using the mouse or the tab-navigation button.

About Focus Method in jQuery

Syntax:

$(selector).focus(func)

Selector -is the chosen element in this case. 

Func- Passing function as a parameter.

Parameter: It accepts an optional parameter “function,” which specifies the function to run when the focus event occurs. 

// Implementation of jQuery Focus Method: 🖥️

Case #1: Without passing a func(function) to the method.

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>jQuery Focus() Method</title>
    <style>
        span {
          display: none;
          color: white;
          background-color: blue;

        }
         body {
            background-color: black;
            width: 25%;
            height: 150px;
            border: 2px solid rgb(97, 188, 184);
            padding: 15px;
            margin: 15px;
        }
        </style>
        <script src="https://code.jquery.com/jquery-3.5.0.js"></script>
</head>
<body>
    <div >
        <h1 style="color:orangered;">
            Coding Ninjas
        </h1>
        <p1 style="background-color: white;">
            jQuery Focus() Method
        </p1>
        <!-- the element in this will get focus -->
        <p>
            <input type="text"> <span>Focus Method is working</span></p>
        <!-- jQuery code  -->
        <!--  working of this method -->
        <!-- Input is the selected element, and the function is NOT  passed -->

        <script>
            $("input").focus();
        </script>
</body>
</html>

 

 Output without passing function

Case #2: Passing a func(function) to the method-

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>jQuery Focus() Method</title>
    <style>
        span {
          display: none;
          color: white;
          background-color: blue;

        } 
        body {
            background-color: black;
            width: 25%;
            height: 150px;
            border: 2px solid rgb(97, 188, 184);
            padding: 15px;
            margin: 15px;
        }
   
        </style>
        <script src="https://code.jquery.com/jquery-3.5.0.js"></script>
</head>
<body>
    <div >
        <h1 style="color:orangered;">
            Coding Ninjas
        </h1>
        <p1 style="background-color: white;">
            jQuery Focus() Method
        </p1>
        <!-- the element in this will get focus -->
        <p>
            <input type="text"> <span>Focus Method is working</span></p>
     
        <!-- jQuery code  -->
        <!--  working of this method -->
        <!-- Input is the selected element , and the function is passed -->
        <!-- fadeOut is used for changing the opacity of text  -->
        <script>
            $("input").focus(function() {
                $(this).next("span").css("display", "inline").fadeOut(5000);
            });
        </script>
</body>
</html>
Outer after passing function

Try this code with online javascript compiler for better understanding.

Frequently Asked Questions 

Is JQuery a programming language or library?

JQuery is a well-written JavaScript script rather than a programming language.

Does jQuery HTML support XML and HTML documents equally?

No, JQuery HTML does not function with XML documents. It supports only HTML documents.

What distinguishes jQuery's ID selector from its class selector?

To choose only one element, you employ an ID selector. Using the class selector with the same CSS class will select all components that belong to that group.

Use of jQuery connect?

When a function from another object or plug-in is called, Connect is used to run the associated function.

What makes using jQuery necessary, exactly?

It is a highly developed internal library that helps to run JS(javascript) more efficiently. It manages numerous applications, and its importance is undeniable.

Conclusion

In this blog, we have discussed the jQuery Focus Method.

We hope this blog has helped you enhance your knowledge of this jQuery Focus Method.

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