add string to string javascript code example

Example 1: add text to string javascript

let string = "hello";

string += " world"; // "hello world"

const newString = string + "!"; // "hello world!"

Example 2: string concatenation in js

var str1 = "Hello ";
var str2 = "world!";
var res = str1.concat(str2);
console.log(res);

Example 3: how to concatenate strings javascript

var str1 = "Hello ";
var str2 = "world!";
var res = str1.concat(str2);
// does not change the existing strings, but
// returns a new string containing the text
// of the joined strings.

Example 4: javascript string concatenation

var totn_string = '';

console.log(totn_string.concat('Tech','On','The','Net'));

//The following will be output to the web browser console log:

TechOnTheNet

Example 5: append string js

var s = "1"
s += "2"

Example 6: javascript add to string

var s = 'hell'
s = s + 'o'