funsction in js code example

Example 1: How to create a function in javascript

function addfunc(a, b) {
  return a + b;
  // standard long function
}

addfunc = (a, b) => { return a + b; }
// cleaner faster way creating functions!

Example 2: javascript functions

function sayHelloTo(to) {
  alert(`Hello ${to}`);
}
sayHelloTo('World from Grepper')