slice() – Return Sub-Array

array1.slice()
array1.slice(, start)
array1.slice(, start, end)

• array1 is an array of elements
• start is the starting index (inclusive) from which slicing happens
• end is the ending index (exclusive) upto which slicing happens

slice() method returns a shallow copy of the given array from start index upto end index

slice() method does not modify the original array array1

Examples

1. slice entire array

const array1 = [2, 4, 8, 16, 32, 64, 128, 256];
const output = array1.slice();
console.log('Original Array : ' + array1);
console.log('Sliced Array   : ' + output);

If no arguments are passed to slice(), then slice() method returns a copy of the original array

2. slice array from a specific start

const array1 = [2, 4, 8, 16, 32, 64, 128, 256];
const start = 5;
const output = array1.slice(start);
console.log('Original Array : ' + array1);
console.log('Sliced Array   : ' + output);

3. slice array from a specific start index upto specific end index

const array1 = [2, 4, 8, 16, 32, 64, 128, 256];
const start = 2;
const end = 6;
const output = array1.slice(start, end);
console.log('Original Array : ' + array1);
console.log('Sliced Array   : ' + output);