PowerArray vs....

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PowerArray vs....

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Last edited Nov 28, 2014

Created on Nov 28, 2014

This example benchmarks the `forEach` method across multiple JavaScript libraries—native `Array.prototype.forEach`, `fast.js`, `underscore`, and `lodash`—applied to three data types: plain arrays, `Float32Array`, and a custom `PowerArray` class. It shows that native `forEach` on a plain array is the baseline, while `fast.js` and `underscore` achieve similar or better throughput on arrays, with `powerArray.forEach` leading all variants. The code uses `process.hrtime()` for high-resolution timing and computes operations per second from a 10-million-element dataset. Results highlight that typed arrays (`Float32Array`) generally slow down iteration, except with `lodash` and `underscore`, which still lag behind array-based calls.

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