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Diffstat (limited to 'school/node_modules/asynckit/lib/state.js')
-rw-r--r-- | school/node_modules/asynckit/lib/state.js | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/school/node_modules/asynckit/lib/state.js b/school/node_modules/asynckit/lib/state.js new file mode 100644 index 0000000..cbea7ad --- /dev/null +++ b/school/node_modules/asynckit/lib/state.js @@ -0,0 +1,37 @@ +// API +module.exports = state; + +/** + * Creates initial state object + * for iteration over list + * + * @param {array|object} list - list to iterate over + * @param {function|null} sortMethod - function to use for keys sort, + * or `null` to keep them as is + * @returns {object} - initial state object + */ +function state(list, sortMethod) +{ + var isNamedList = !Array.isArray(list) + , initState = + { + index : 0, + keyedList: isNamedList || sortMethod ? Object.keys(list) : null, + jobs : {}, + results : isNamedList ? {} : [], + size : isNamedList ? Object.keys(list).length : list.length + } + ; + + if (sortMethod) + { + // sort array keys based on it's values + // sort object's keys just on own merit + initState.keyedList.sort(isNamedList ? sortMethod : function(a, b) + { + return sortMethod(list[a], list[b]); + }); + } + + return initState; +} |