BossBey File Manager
PHP:
7.4.33
OS:
Linux
User:
k1544
Root
/
.
/
lib
/
node_modules
/
bower
/
lib
/
node_modules
/
mout
/
array
📤 Upload
📝 New File
📁 New Folder
Close
Editing: reduce.js
/** * Array reduce */ function reduce(arr, fn, initVal) { // check for args.length since initVal might be "undefined" see #gh-57 var hasInit = arguments.length > 2, result = initVal; if (arr == null || !arr.length) { if (!hasInit) { throw new Error('reduce of empty array with no initial value'); } else { return initVal; } } var i = -1, len = arr.length; while (++i < len) { if (!hasInit) { result = arr[i]; hasInit = true; } else { result = fn(result, arr[i], i, arr); } } return result; } module.exports = reduce;
Save
Cancel