Does JavaScript have a method like “range()” to generate a range within the supplied bounds?

Question

In PHP, you can do...

range(1, 3); // Array(1, 2, 3)
range(\"A\", \"C\"); // Array(\"A\", \"B\", \"C\")

That is, there is a function that l

Answer 1

--- UPDATE (Thanks to @lokhmakov for simplification) ---

Another version using ES6 generators ( see great Paolo Moretti answer with ES6 generators ):

const RANGE = (x,y) => Array.from((function*(){
  while (x <= y) yield x++;
})());

console.log(RANGE(3,7));  // [ 3, 4, 5, 6, 7 ]

Or, if we only need iterable, then:

const RANGE_ITER = (x,y) => (function*(){
  while (x <= y) yield x++;
})();

for (let n of RANGE_ITER(3,7)){
  console.log(n);
}

// 3
// 4
// 5
// 6
// 7

--- ORGINAL code was: ---

const RANGE = (a,b) => Array.from((function*(x,y){
  while (x <= y) yield x++;
})(a,b));

and

const RANGE_ITER = (a,b) => (function*(x,y){
  while (x <= y) yield x++;
})(a,b);