Benchmark: text encoders - MeasureThat.net

Tests:

str2ab
str2ab('Hello world! Hello world! Hello world! Hello world! Hello world! Hello world! Hello world! Hello world!'); function str2ab(str) { var buf = new ArrayBuffer(str.length*2); var bufView = new Uint16Array(buf); for (var i=0, strLen=str.length; i < strLen; i++) { bufView[i] = str.charCodeAt(i); } return buf; }
textencoder api
str2ab('Hello world! Hello world! Hello world! Hello world! Hello world! Hello world! Hello world! Hello world!'); function str2ab(str) { return new TextEncoder('utf-8').encode(str) }

Rendered benchmark preparation results:

Previous results

Test case name	Result
str2ab
textencoder api

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.102 Safari/537.36

Browser/OS: Chrome 98 on Windows

Test name	Executions per second
str2ab	1201641.0 Ops/sec
textencoder api	501909.7 Ops/sec

text encoders (version: 0)