Javascript Split Performance
I'm sure you've all seen code like this in JS:
var args = 'now later today tomorrow'.split(' ')
Anyone know why that's faster than this:
args = ['now', 'later', 'today', 'tomorrow']
(I don't know the answer to this, but I can verify by timing in the console that splitting is faster)
Solution
I would be surprised if .split() was faster; why do you think it is?
I made this perf demo and it shows it's not faster.
https://web.archive.org/web/20150602025321/https://jsperf.com/split-performance
Testing in Firefox 139.0 32-bit on Windows NT 10.0 64-bit
Test Code Ops/sec Split var args = 'now later today tomorrow'.split(' ') 15,739,447
±13.29%
86% slowerArray args = ['now', 'later', 'today', 'tomorrow'] 101,481,757
±1.88%
fastest
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