JSFiddle - React, Tailwind, and code Playground

by Tom M

JavaScript

function steamrollArray(arr) {
  let newArr = arr.reduce(function(a,b) {
    return a.concat(b);
  })
  console.log(newArr);
}

steamrollArray[[1,4,5,6]];
//steamrollArray([1, [2], [3, [[4]]]]);