The replace() method can be used in a TypeScript string to replace a particular substring or a match (regular expression) in a string. All we need to do is pass the substring or regular expression of the substring we want to replace.
string.replace(substring|regex, replacement)
substring: This is the substring of a string string that we want to replace.regex: This is used as a regular expression to match the substring we want to replace.replacement: This is what we want to use as a replacement to the regex or substring.The value returned is a new string.
export {}// create some stringslet name:string = "Onyejiaku Doe"let role:string = "Musician"let language:string = "JavaScript Language"// create some replacementslet rep1 = "Theodore"let rep2 = "Author"let rep3 = "TypeScript"// replace some substringsconsole.log(name.replace("Doe", rep1))console.log(role.replace(/Musician/gi, rep2))console.log(language.replace("JavaScript", rep3))
replace() method, we replace some substrings and print the new strings to the console.