Investigate performance difference between ES5 natives and simple vanilla

QubitProducts / slapdash

A lightweight JavaScript utility belt with native method override protection

http://npmjs.org/packages/slapdash

MIT License

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Investigate performance difference between ES5 natives and simple vanilla #3

Closed jimmed closed 8 years ago

jimmed commented 8 years ago

For each of the following native browser methods that we use, we need to compare performance between the native version and the vanilla shim/featurefill/alternative.

[x] map
[x] forEach
[x] reduce
[ ] slice
[x] find (already featurefilled where missing)

We want to check this performance gap in modern browsers we intend to support.

[x] FF
[ ] Safari
[ ] IE9 + up
[x] Chrome
[ ] Android Browser
[ ] Safari iOS
[ ] Oper... ah I'm just kidding

jimmed commented 8 years ago

The numbers in each of the cells is operations per second. Performed using https://github.com/qubitdigital/slapdash/pull/6

This is a pretty compelling result. For these 3 browsers, in nearly every case, native browser methods are significantly more performant than their vanilla counterparts.