how to get the first character of a string in javascript

const string = "0123456789";
console.log(string.slice(0, 2)); // "01"
console.log(string.slice(0, 8)); // "01234567"
console.log(string.slice(3, 7)); // "3456"

let myStr = "Hello World"
let firstWord = myStr.split(" ")[0]

var x = 'some string';
alert(x.charAt(0)); // alerts 's'