replace all char in string javascript code example

Example 1: javascript replace string

var str = "JavaScript replace method test";
var res = str.replace("test", "success");  
//res = Javscript replace method success

Example 2: js replace characters in a string

var str = "Original string!";
var str = str.replace("Original", "New");

Example 3: how to replace all characters in a string javascript

const string = "a, b, c, d, e, f";
string.replace(/,/g, '');
console.log(string) //a b c d e f

Example 4: replace all character in string javascript

let a = "How to search and replace a char in a string";
while (a.search(" ", ""))
{
   a = a.replace(" ", "");
}
console.log(a);