javascript sting replace 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: replacing characters in string javascript

var myStr = 'this,is,a,test';
var newStr = myStr.replace(/,/g, '-');

console.log( newStr );  // "this-is-a-test"

Example 3: javascript replace

// Valor retornado: “Aprendendo JavaScript. JavaScript é na DevMedia”
exemplo = "Aprendendo Javascript. JAVAScript é na DevMedia ";
resultado = exemplo.replace(/javascript/gi, "JavaScript");