js string.replace spaces code example

Example 1: js replace space with underscore

var string = "my name";
string = string.replace(/ /g,"_"); //returns my_name

Example 2: string replace javascript

let re = /apples/gi; 
let str = "Apples are round, and apples are juicy.";
let newstr = str.replace(re, "oranges"); 
console.log(newstr)

output:

"oranges are round, and oranges are juicy."

Example 3: javascript replace spaces with br

str = str.replace(/\s/g, "<br>");