How to create an array containing 1…N

Question

I\'m looking for any alternatives to the below for creating a JavaScript array containing 1 through to N where N is only known at runt

Answer 1

In ES6 you can do:

Array(N).fill().map((e,i)=>i+1);

http://jsbin.com/molabiluwa/edit?js,console

Edit: Changed Array(45) to Array(N) since you've updated the question.

console.log(
  Array(45).fill(0).map((e,i)=>i+1)
);