How do I make the first letter of a string uppercase in JavaScript?

Question

How do I make the first letter of a string uppercase, but not change the case of any of the other letters?

For example:

• \"this is a test\"

Answer 1

Use:

var str = "ruby java";

console.log(str.charAt(0).toUpperCase() + str.substring(1));

It will output "Ruby java" to the console.