JQuery | map() Method
This map() Method in jQuery is used to translate all items in an array or object to new array of items.
Syntax:
jQuery.map( array/object, callback )
Parameters: This method accept two parameters which is mentioned above and described below:
- array/object: This parameter holds the Array or object to translate.
- callback: This parameter holds the function to process each item against.
Return Value: It returns the array.
Below examples illustrate the use of map() method in jQuery:
Example 1: This example use jQuery.map() method and return the square of array element.
<!DOCTYPE html><html> <head> <meta charset="utf-8"> <title>JQuery | map() method</title> <script src= </script> </head> <body style="text-align:center;"> <h1 style="color: green"> GeeksforGeeks </h1> <h3>JQuery | map() method</h3> <b>Array = [2, 5, 6, 3, 8, 9]</b> <br> <br> <button onclick="geek()">Click</button> <br> <br> <b id="root"></b> <script> function geek() { var el = document.getElementById('root'); var arr = [2, 5, 6, 3, 8, 9]; var newArr = jQuery.map(arr, function(val, index) { return { number: val, square: val * val }; }) el.innerHTML = JSON.stringify(newArr); } </script></body> </html> |
Output:
Example 2: This example use map() method to concatenate character ‘A’ with every character of name.
<!DOCTYPE html><html> <head> <meta charset="utf-8"> <title>JQuery | map() method</title> <script src= </script> </head> <body style="text-align:center;"> <h1 style="color: green"> GeeksforGeeks </h1> <h3>JQuery | map() method</h3> <b>String = "Shubham"</b> <br> <br> <button onclick="geek()">Click</button> <br> <br> <b id="root"></b> <script> function geek() { var el = document.getElementById('root'); var name = "Shubham"; name = name.split(""); // New array of character and names // concatenated with 'A' var newName = jQuery.map(name, function(item) { return item + 'A<br>'; }) el.innerHTML = newName; } </script></body> </html> |
Output:
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