Numbers

• e == 0 will return true if e = flase or any other falsey value, e === 0 strict for 0 only.
• useful number formatter \(espesially for currency\)

/**
 * initializing currency formatter
 */
const formatter = Intl.NumberFormat("en-US", {
  style: "currency",
  currency: "GBP",
});

• find Min and Max elemnt of an Array:

var numbers = [1, 2, 3, 4];
Math.max.apply(null, numbers); // 4
Math.min.apply(null, numbers); // 1

//OR

Math.max(...numbers); // 4
Math.min(...numbers); // 1

• generating random number between 0 and max:

Math.floor(Math.random() * Math.floor(max));