how to get first 2 characters from string in javascript code example

Example 1: javascript get first 2 char

String.substring(0, 2);
//Return the first two characters of the string
//First parameter is the starting index, 0 corresponding to the first character
//Second parameter is the number of character to return

Example 2: javascript delete first character in string

var oldStr ="Hello";
var newStr = oldStr.substring(1); //remove first character "ello"

Example 3: 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 4: 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 5: substring javascript

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