reduce(callbackfn:(Dynamic, Int, Int, Int32Array) ‑> Dynamic, initialValue:Dynamic):Dynamicreduce(callbackfn:(Int, Int, Int, Int32Array) ‑> Int):IntreduceRight(callbackfn:(Dynamic, Int, Int, Int32Array) ‑> Dynamic, initialValue:Dynamic):DynamicreduceRight(callbackfn:(Int, Int, Int, Int32Array) ‑> Int):Int