How to get Sub Array in JavaScript - Step by Step Examples



How to get Sub Array in JavaScript ?

Answer

To get a sub-array in JavaScript, you can use the `slice` method of arrays.



✐ Examples

1 Sub-array of Integer Array

In this example,

  1. We create an integer array named numbers with some values.
  2. We then use the slice method to get a sub-array from index 2 to index 4 (exclusive).
  3. The slice method returns a new array with the specified range.
  4. Finally, we log the sub-array to the console.

JavaScript Program

const numbers = [1, 2, 3, 4, 5];
const subArray = numbers.slice(2, 4);
console.log('Sub-array:', subArray);

Output

Sub-array: [ 3, 4 ]

2 Sub-array of String Array

In this example,

  1. We create a string array named colors with some values.
  2. We then use the slice method to get a sub-array from index 1 to index 3 (exclusive).
  3. The slice method returns a new array with the specified range.
  4. Finally, we log the sub-array to the console.

JavaScript Program

const colors = ['red', 'green', 'blue', 'yellow', 'orange'];
const subArray = colors.slice(1, 3);
console.log('Sub-array:', subArray);

Output

Sub-array: [ 'green', 'blue' ]

Summary

In this tutorial, we learned How to get Sub Array in JavaScript language with well detailed examples.




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