Answers for "replace // with / in javascript"

javascript replace string

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

javascript replace

const p = 'dog dog cat rat';
const regex = /dog/gi;

console.log(p.replace(regex, 'cow'));
//if pattern is regular expression all matches will be replaced
//output: "cow cow cat rat"

console.log(p.replace('dog', 'cow'));
// If pattern is a string, only the first occurrence will be replaced.
//output: "cow dog cat rat"

replace() in javascript

replace(regexp, newSubstr)
replace(regexp, replacerFunction)

replace(substr, newSubstr)
replace(substr, replacerFunction)