Replace string in javascript with examples including regular expression REGEX

In this video, we are discussing How to replace a character,a substring or group of characters from a string variable in javascript 1. Replace a character from a variable with empty character 2.Replace a sub string from a variable with empty character 3.Replace a set of characters from a variable with empty character Here we replace character 'e' from string 'Technursery' by calling blogName.replace('e', '') .It will replace first occurrence of 'e' from the string 'Technursery' const blogName = 'Technursery'; const blogNameWithoutVowels = blogName.replace('e', ''); console.log(blogNameWithoutVowels); Here we are replacing all vowels characters aeiou from the given string using regular expression REGEX.By executing blogName.replace(/[aeiou]/gi, '') we will get the string without all vowels aeiou const blogName = 'Technursery'; const blogNameWithoutVowels = blogName.replace(/[aeiou]/gi, ''); console.log(blogNameWithoutVowels); Here we replace a substring with empty string in javascript. When we execute blogName.replace('Tech', '') it will replace substring Tech with empty string const blogName = 'Technursery'; const blogNameWithoutVowels = blogName.replace('Tech', ''); console.log(blogNameWithoutVowels);