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

Using new Array methods and => function syntax from ES6 standard (only Firefox at the time of writing).

By filling holes with undefined:

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

Array.from turns "holes" into undefined so Array.map works as expected:

Array.from(Array(5)).map((_, i) => i + 1)