JSFiddle - React, Tailwind, and code Playground

JavaScript

var str="The JavaScript slice() method for string.";
var n = '';

// Fetch first character of the string
n=str.slice(0,1); 
alert(n);   // OUTPUT: T

// fetch specific number of characters from string
n =str.slice(4,23);
alert(n);    // OUTPUT: JavaScript slice()

// fetch specific number of characters starts from righthand side string
n =str.slice(-11,50);
alert(n);    // OUTPUT: for string.