Helps to get translate values from a matrix string, from `window.getComputedStyle`

getTranslateYFromMatrix.js

/**
  * Returns null if the Transform is not pre-calculated as a matrix string...
  * else returns the translateY in Pixels...
  *
  * @param matrix: `window.getComputedStyle({ELEMENT}).getPropertyValue('transform')`
  *
  * Example: matrix = 'matrix(1, 0, 0, 1, 101.2, 186)' // [4]: translateX, [5]: translateY
  */
getTranslateYFromMatrix = (matrix) => {
   const match = matrix.match(/\((.*)\)/)[1];
   if (match) {
     return window.parseInt(match.split(',')[5], 10);
   }
   return null;
 }