python string cut code example

Example 1: substring javascript

var str = "Hello world!";
var res = str.substring(1, 4); //ell

Example 2: cut string from string javascript

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

Example 3: reactjs cut part of string

var str = "Hello world!";

var res = str.substring(1, 4);

// res value is "ell"