How to Convert a String to Uppercase with JavaScript

Learn how to convert any text case to uppercase with JavaScript.

To convert any string to you can use the JavaScript toUpperCase() method:

let someText = "Here is some text. Let us convert it all to uppercase"

someText.toUpperCase()

console.log(someText.toUpperCase())
// "HERE IS SOME TEXT. LET US CONVERT IT ALL TO UPPERCASE"

toUpperCase() returns a new string, which means that it does not mutate (change) the original string.