return in javascript function call code example

Example 1: jquery function return

function myFunction(p1, p2) {
  var a = "";
 $.post( "/url", function( data ) {a = data.result;});
  return a;
}

Example 2: return string from javascript function

<script>
function showName() {
  var result;
  result = addString('Hello', ' World');
  document.write (result );
}

// in below we will check how to return string from function
function addString(fName, lName) {
  var val;
  val = fName + lName;
  return val;  // returning string from function
}
</script>
<input type = "button" onclick = "showName()" value = "Result">
  
/*
I hope it will help you.
Namaste
Stay Home Stay Safe
*/

Example 3: call js

function Product(name, price) {
  this.name = name;
  this.price = price;

  if (price < 0)
    throw RangeError('Cannot create product "' + name + '" with a negative price');
  return this;
}

function Food(name, price) {
  Product.call(this, name, price);
  this.category = 'food';
}
Food.prototype = new Product();

function Toy(name, price) {
  Product.call(this, name, price);
  this.category = 'toy';
}
Toy.prototype = new Product();

var cheese = new Food('feta', 5);
var fun = new Toy('robot', 40);