function validateEmail (emailAdress)
{
let regexEmail = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;
if (emailAdress.match(regexEmail)) {
return true;
} else {
return false;
}
}
let emailAdress = "test@gmail.com";
console.log(validateEmail(emailAdress));
const re = /^(([^<>()\[\]\.,;:\s@\"]+(\.[^<>()\[\]\.,;:\s@\"]+)*)|(\".+\"))@(([^<>()[\]\.,;:\s@\"]+\.)+[^<>()[\]\.,;:\s@\"]{2,})$/i;
function ValidateEmailAddress(emailString) {
// check for @ sign
var atSymbol = emailString.indexOf("@");
if(atSymbol < 1) return false;
var dot = emailString.indexOf(".");
if(dot <= atSymbol + 2) return false;
// check that the dot is not at the end
if (dot === emailString.length - 1) return false;
return true;
}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)
Run code snippetvar str = "Java Script Object Notation";
var matches = str.match(/\b(\w)/g); // ['J','S','O','N']
var acronym = matches.join(''); // JSON
console.log(acronym)
Run code snippetlet str = "Java Script Object Notation";
let acronym = str.split(/\s/).reduce((response,word)=> response+=word.slice(0,1),'')
console.log(acronym);
Run code snippet