WPJgGo

script.js

// For CitrusByte app
const control = [1, 2, 3];
const simple = [[2,3]];
const simpleMix = [1, [2,3]];
const compound = [[0,1], [2,3]];
const compoundMix = [[0,1], 0.5, [2,3]];
const compoundMix2 = [[-4, -3,-2], [-1,0,1], 0.5, [2,3,4,5], 6, 7 ,8 ,9];

function flattenArray(arr) {
  if(!Array.isArray(arr) || !arr.length){
    console.warn('no array type or empty'); //this assumes empty arrays are not to be accounted for
    return null;
  }
  return arr.map(v=>Array.isArray(v) ? flattenArray(v) : v);
}

console.log(
  `control: ${flattenArray(control)}`,
  `simple: ${flattenArray(simple)}`,
  `simpleMix: ${flattenArray(simpleMix)}`,
  `compound: ${flattenArray(compound)}`,
  `compoundMix: ${flattenArray(compoundMix)}`,
  `compoundMix2: ${flattenArray(compoundMix2)}`,
  );

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WPJgGo

A Pen by Temitope on CodePen.

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