Sha256: 4ca8a8d7cc53af3a3579a20280fdc776dbfdad4604f9079366db97f20fdea127
Contents?: true
Size: 778 Bytes
Versions: 69
Compression:
Stored size: 778 Bytes
Contents
/**
* 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;
Version data entries
69 entries across 69 versions & 2 rubygems