arrow function in settimeout code example

Example 1: settimeout arrow function javascript

doWork(callback) {
    setTimeout(() => callback(this.name), 15); 
}

Example 2: settimeout function es6

if (timerid) {
  clearTimeout(timerid);
}

timerid = setTimeout(() => {
  this.reqMaq(obj['fkmaqid'])
}, 2000);