how to use .replace in 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: javascript replace

var res = str.replace("find", "replace");

Example 3: javascript replace all occurrences of string

function replaceAll(str, find, replace) {
    var escapedFind=find.replace(/([.*+?^=!:${}()|\[\]\/\\])/g, "\\$1");
    return str.replace(new RegExp(escapedFind, 'g'), replace);
}
//usage example
var sentence="How many shots did Bill take last night? That Bill is so crazy!";
var blameSusan=replaceAll(sentence,"Bill","Susan");

Example 4: javascript replace

var frase = "Son tres mil trescientos treinta y tres con nueve";
frase = frase.replace("tres","dos");
console.log(frase);
//Son dos mil trescientos treinta y tres con nueve