ES6 - RegExp replace()

This method returns a new string after replacing the matched pattern.

Syntax

str.replace(regexp|substr, newSubStr|function)           

Parameter Details

• Regexp − A regular expression object.

• Substr − String to be replaced.

• newSubStr − The replacement string.

• function − the function to create a new string.

Return Value

A new string after replacing all matches.

Example

var str = 'Good Morning'; 
var newstr = str.replace('Morning', 'Night'); 
console.log(newstr);  

Output

Good Night