How many more ways are there to reverse a string in JavaScript? I was reading the friendly manual again and thought of another way.
The method is let down a little by the .map() at the end. I was rather hoping for a less pedestrian way of changing the ArrayBuffer back into normal text.
The other gotcha is that we're storing uint values, so prepare for mangled emojis.
function Bruce_ByteBuffer(string) { let buffer = new ArrayBuffer(string.length); let int8View = new Uint8Array(buffer); for (let i = 0, j = string.length - 1; i < string.length; i++, j--) { int8View[i] = string.charCodeAt(j); } return Array.prototype.slice.call(int8View).map(function (item) { return String.fromCharCode(item) }).join(""); } Speed-wise, using my framework, it's in the slower end of midrange.
Sarah_ForOf 1997.262 ticks Bruce_CharAt 3165.792 ticks Sarah_SplitReverseJoin 3382.125 ticks Bruce_Recursive2 3423.004 ticks Theophanis_SplitFor 3765.074 ticks Nathanael_SplitReverseJoin 3829.166 ticks Bruce_Recursive1 3981.59 ticks Sarah_Reduce 4272.548 ticks Theophanis_SplitFor_Bruced 4310.981 ticks Sarah_Recursive 4580.1 ticks Bruce_ArrayApplyMap 6305.892 ticks Bruce_ReverseGenerator 8994.98 ticks Bruce_MapSortMap 11262.885 ticks Bruce_ByteBuffer 15190.07 ticks Bruce_CharAt2 17016.049 ticks Bruce_IteratorReverse 103529.193 ticks Bruce_RegReverse 582476.836 ticks 
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