Run results for: looking up the last character of a string

tests with a short string and a long string, to help discern which methods are tied to the string length, and which are not.

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
Chrome 125
Windows
Desktop
2 years ago
long endsWidth
18.5M/s
short endsWith
18.4M/s
long substr
18.1M/s
short slice
18.1M/s
long slice
18.1M/s
short substr
17.9M/s
long charCodeAt
10.3M/s
short CharCodeAt
10.1M/s
long brackets
10.1M/s
short brackets
9.9M/s
long charAt
9.9M/s
short substring
9.9M/s
short charAt
9.7M/s
long substring
9.6M/s
long regexp
8.4M/s
short regexp
8.2M/s
View exact numbers
Test name Executions per second
✓ long endsWidth 18,529,908 Ops/sec
short endsWith 18,433,988 Ops/sec
long substr 18,134,594 Ops/sec
short slice 18,124,416 Ops/sec
long slice 18,120,978 Ops/sec
short substr 17,922,024 Ops/sec
long charCodeAt 10,303,986 Ops/sec
short CharCodeAt 10,093,338 Ops/sec
long brackets 10,084,123 Ops/sec
short brackets 9,901,799 Ops/sec
long charAt 9,885,878 Ops/sec
short substring 9,876,030 Ops/sec
short charAt 9,685,357 Ops/sec
long substring 9,552,300 Ops/sec
long regexp 8,375,744 Ops/sec
short regexp 8,219,704 Ops/sec
Script Preparation code:
Tests: