function _longestText()

in Hands-on lab/lab-files/starter-project/NorthwindMVC/wwwroot/lib/Chart.js/chart.js [1192:1228]

• 37 lines of code
• 16 McCabe index (conditional complexity)

function _longestText(ctx, font, arrayOfThings, cache) {
  cache = cache || {};
  let data = cache.data = cache.data || {};
  let gc = cache.garbageCollect = cache.garbageCollect || [];
  if (cache.font !== font) {
    data = cache.data = {};
    gc = cache.garbageCollect = [];
    cache.font = font;
  }
  ctx.save();
  ctx.font = font;
  let longest = 0;
  const ilen = arrayOfThings.length;
  let i, j, jlen, thing, nestedThing;
  for (i = 0; i < ilen; i++) {
    thing = arrayOfThings[i];
    if (thing !== undefined && thing !== null && isArray(thing) !== true) {
      longest = _measureText(ctx, data, gc, longest, thing);
    } else if (isArray(thing)) {
      for (j = 0, jlen = thing.length; j < jlen; j++) {
        nestedThing = thing[j];
        if (nestedThing !== undefined && nestedThing !== null && !isArray(nestedThing)) {
          longest = _measureText(ctx, data, gc, longest, nestedThing);
        }
      }
    }
  }
  ctx.restore();
  const gcLen = gc.length / 2;
  if (gcLen > arrayOfThings.length) {
    for (i = 0; i < gcLen; i++) {
      delete data[gc[i]];
    }
    gc.splice(0, gcLen);
  }
  return longest;
}