_.reduceRight

reduceRight_.reduceRight(list, iteratee, memo, [context]) Alias: foldr
The right-associative version of reduce. Foldr is not as useful in JavaScript as it would be in a language with lazy evaluation.

var list = [[0, 1], [2, 3], [4, 5]];
var flat = _.reduceRight(list, function(a, b) { return a.concat(b); }, []);
=> [4, 5, 2, 3, 0, 1]

Links:

http://underscorejs.org/index#reduceRight

doc_Underscore

2025-01-10 15:47:30

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