let str = 'John Wick' let firstChar = str.charAt(0) console.log(firstChar); // "J"
var val = 'asdasd:111122:123123123'; var response = val.substring(val.indexOf(":")); alert(response); // ":111122:123123123"
var str = "HELLO WORLD"; var res = str.charAt(0);
var str="Hello Folks!" var firstStringChar = str.charAt(0); //H
var x = 'some string'; alert(x.charAt(0)); // alerts 's'
function capitalizeFirstLetter(string) { return string.charAt(0).toUpperCase() + string.slice(1); } console.log(capitalizeFirstLetter('foo')); // Foo
var str = "Hello world That is reallly neat!"; var res = str.substring(0, 5);//get first 5 chars
const string = "0123456789"; console.log(string.slice(0, 2)); // "01" console.log(string.slice(0, 8)); // "01234567" console.log(string.slice(3, 7)); // "3456"
var str = "Hello world!"; var res = str.substring(0, 1);
var str = "Java Script Object Notation"; var matches = str.match(/\b(\w)/g); // ['J','S','O','N'] var acronym = matches.join(''); // JSON console.log(acronym)