js string first letter 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: javascript get first character of string

var str="Hello Folks!"
var firstStringChar = str.charAt(0); //H

Example 3: get first word of string js

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

Example 4: capitalise first letter js

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

Example 5: js get words first letter

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)