Function deepSize

src/common/object.js:174–182

(val)

}

export function deepSize(val) {
  if (val === undefined) return 0;
  if (val === true || val == null) return 4;
  if (val === false) return 5;
  if (typeof val === 'string') return val.length + 2; // not counting escapes for \n\r\t and so on
  if (typeof val !== 'object') return `${val}`.length; // number and whatever
  if (Array.isArray(val)) return val.reduce((sum, v) => sum + 1 + deepSize(v), 2);
  return Object.keys(val).reduce((sum, k) => sum + k.length + 4 + deepSize(val[k]), 2);
}

export function nest(obj, key) {
  return obj[key] || (obj[key] = {});