String slice()

In JavaScript, String.slice() method is used to find the substring of a string which is defined by a specific start index, and an optional end index.

Syntax

str.slice(start)
str.slice(start, end)

• str is a string.
• start is a number
• end is a number

slice() method slices the given string from given start, to end position, and returns the sliced string.

Examples

1. slice(start) – where substring is defined by only a specific start index in the string.

let name = 'appleisgreat';
let output = name.slice(6);
console.log(output);

2. slice(start) with start as negative number

let name = 'appleisgreat';
let output = name.slice(-8); //negative index means counting from end
console.log(output);

3. slice(start, end) – where substring is defined by a specific start index in the string, and a specific end index in the string.

let name = 'appleisgreat';
let output = name.slice(4, 9);
console.log(output);