Sha256: deda9c9eb1da4a3aff2b008e641c1820e25e0b85f054d865265414cb3f7df3b2
Contents?: true
Size: 764 Bytes
Versions: 62
Compression:
Stored size: 764 Bytes
Contents
var forEach = require('../array/forEach');
var identity = require('../function/identity');
var makeIterator = require('../function/makeIterator_');
/**
* Bucket the array values.
*/
function groupBy(arr, categorize, thisObj) {
if (categorize) {
categorize = makeIterator(categorize, thisObj);
} else {
// Default to identity function.
categorize = identity;
}
var buckets = {};
forEach(arr, function(element) {
var bucket = categorize(element);
if (!(bucket in buckets)) {
buckets[bucket] = [];
}
buckets[bucket].push(element);
});
return buckets;
}
module.exports = groupBy;
Version data entries
62 entries across 62 versions & 1 rubygems