Underscore.js (1.4.4) » GitHub Repository » Annotated Source Introduction Collections - each - map - reduce - reduceRight - find - filter - where - findWhere - reject - every - some - contains - invoke - pluck - max - min - sortBy - groupBy - countBy - shuffle - toArray - size Arrays - first - initial - last - rest - compact - flatten - without - union - intersection - difference - uniq - zip - ob