source: trip-planner-front/node_modules/asynckit/lib/state.js@ 76712b2

Last change on this file since 76712b2 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 941 bytes
Line 
1// API
2module.exports = state;
3
4/**
5 * Creates initial state object
6 * for iteration over list
7 *
8 * @param {array|object} list - list to iterate over
9 * @param {function|null} sortMethod - function to use for keys sort,
10 * or `null` to keep them as is
11 * @returns {object} - initial state object
12 */
13function state(list, sortMethod)
14{
15 var isNamedList = !Array.isArray(list)
16 , initState =
17 {
18 index : 0,
19 keyedList: isNamedList || sortMethod ? Object.keys(list) : null,
20 jobs : {},
21 results : isNamedList ? {} : [],
22 size : isNamedList ? Object.keys(list).length : list.length
23 }
24 ;
25
26 if (sortMethod)
27 {
28 // sort array keys based on it's values
29 // sort object's keys just on own merit
30 initState.keyedList.sort(isNamedList ? sortMethod : function(a, b)
31 {
32 return sortMethod(list[a], list[b]);
33 });
34 }
35
36 return initState;
37}
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