Answers for "how to change to uppercase in javascript"

uppercase javascript

var str = "Hello World!";
var res = str.toUpperCase();  //HELLO WORLD!

capitalize in javascript

const name = 'flavio'
const nameCapitalized = name.charAt(0).toUpperCase() + name.slice(1)

javascript capitalize

myString = 'the quick green alligator...';
myString.replace(/^\w/, (c) => c.toUpperCase());

myString = '    the quick green alligator...';
myString.trim().replace(/^\w/, (c) => c.toUpperCase());

js to uppercase

var string = "A string";
console.log(string.toUpperCase()); // -> A STRING