These 2 statements seem to do the same thing.
const handleClick = () => alert('foo');
and
function handleClick() {
alert('foo');
}
Are they identical and just syntactically different? The first one looks like a variable declaration, whereas the second one is clearly a function definition.
No, they are not the same thing. The arrow function has some limitations:
ES6 arrow functions provide you with an alternative way to write a shorter syntax compared to the function expression. There is no performance difference.