TypeScript Array slice() Method

The Array.slice() method in TypeScript is a built-in function used to extract a section of an array and return it as a new array. This method does not alter the original array.

Syntax:

 array.slice( begin [,end] ); 

Parameter: This method accepts two parameters as mentioned above and described below:

• begin : This parameter is the Zero-based index at which to begin extraction.
• end : This parameter is the Zero-based index at which to end extraction.

Return Value: This method returns the extracted arra.

The below example illustrates the  Array slice() method in TypeScriptJS:

Example 1: In this example we defines a numeric array arr, then uses the slice() method to extract a portion of it into val.

Output:

[ 23, 7 ]

Example 2:  In this example we defines a string array arr, then uses the slice() method to extract portions of the array into val.

Output:

[ 'e', 'k', 's', 'f' ]
[ 'f', 'o', 'r' ]