Write a function called capitalize that takes a string and returns that string with only the first letter capitalized code example

Example 1: javascript capitalize first letter

const lower = 'this is an entirely lowercase string';
const upper = lower.charAt(0).toUpperCase() + lower.substring(1);

Example 2: capitalise first letter js

const string = "tHIS STRING'S CAPITALISATION WILL BE FIXED."
const string = string.charAt(0).toUpperCase() + string.slice(1)

Example 3: how to make 1st letter capital in ejs

yourstring.replace(/\w/, c => c.toUpperCase())