.config/coc/extensions/node_modules/coc-prettier/node_modules/stylelint/node_modules/map-obj/index.js

   1 'use strict';
   2
   3 // customized for this use-case
   4 const isObject = x =>
   5         typeof x === 'object' &&
   6         x !== null &&
   7         !(x instanceof RegExp) &&
   8         !(x instanceof Error) &&
   9         !(x instanceof Date);
  10
  11 module.exports = function mapObj(obj, fn, opts, seen) {
  12         opts = Object.assign({
  13                 deep: false,
  14                 target: {}
  15         }, opts);
  16
  17         seen = seen || new WeakMap();
  18
  19         if (seen.has(obj)) {
  20                 return seen.get(obj);
  21         }
  22
  23         seen.set(obj, opts.target);
  24
  25         const target = opts.target;
  26         delete opts.target;
  27
  28         for (const key of Object.keys(obj)) {
  29                 const val = obj[key];
  30                 const res = fn(key, val, obj);
  31                 let newVal = res[1];
  32
  33                 if (opts.deep && isObject(newVal)) {
  34                         if (Array.isArray(newVal)) {
  35                                 newVal = newVal.map(x => isObject(x) ? mapObj(x, fn, opts, seen) : x);
  36                         } else {
  37                                 newVal = mapObj(newVal, fn, opts, seen);
  38                         }
  39                 }
  40
  41                 target[res[0]] = newVal;
  42         }
  43
  44         return target;
  45 };