cut string js code example

Example 1: how to get the first character of a string in javascript

let str = 'John Wick'
let firstChar = str.charAt(0) 
console.log(firstChar); // "J"

Example 2: js get first 3 characters of string

const string = "0123456789";
console.log(string.slice(0, 2)); // "01"
console.log(string.slice(0, 8)); // "01234567"
console.log(string.slice(3, 7)); // "3456"

Example 3: js .substring

let anyString = 'Mozilla'

// Displays 'M'
console.log(anyString.substring(0, 1))
console.log(anyString.substring(1, 0))

// Displays 'Mozill'
console.log(anyString.substring(0, 6))

// Displays 'lla'
console.log(anyString.substring(4))
console.log(anyString.substring(4, 7))
console.log(anyString.substring(7, 4))

// Displays 'Mozilla'
console.log(anyString.substring(0, 7))
console.log(anyString.substring(0, 10))

Example 4: short string javascript

short = long.replace(/(.{7})..+/, "$1…");

Example 5: cut string from string javascript

var ret = "data-123".replace('data-','');
console.log(ret);   //prints: 123