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lucascarovs.e.mihaylin

Handy Extension for Integers to Simplify "For" Loop in JS

(Functional version with no loops)

Code
Diff
  • Number.prototype.times = function(f) { 
  const n = this.valueOf()
  const g = (_, i) => f(i)
  return [...Array(n)].map(g) 
}
    • Number.prototype.times = function (f) {
    • for (let i = 0; i < this; i++) f(i);
    • }
    • Number.prototype.times = function(f) {
    • const n = this.valueOf()
    • const g = (_, i) => f(i)
    • return [...Array(n)].map(g)
    • }