capital letter in javascript code example
Example 1: uppercase javascript
var str = "Hello World!";
var res = str.toUpperCase(); //HELLO WORLD!
Example 2: capitalize first letter javascript
function capitalizeFirstLetter(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}
console.log(capitalizeFirstLetter('foo bar bag')); // Foo
Example 3: javascript capitalize first letter
const lower = 'this is an entirely lowercase string';
const upper = lower.charAt(0).toUpperCase() + lower.substring(1);