javascript string get first n characters 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: javascript get first 10 characters of string

var str = "Hello world That is reallly neat!";
var res = str.substring(0, 5);//get first 5 chars

Example 3: javascript get first character of string

var str="Hello Folks!"
var firstStringChar = str.charAt(0); //H

Example 4: get first 10 characters of string javascript

String.substring(0, 10);