RESOLVED DUPLICATE of bug 218348 196764
Date.setDate is too slow in WKWebView 
https://bugs.webkit.org/show_bug.cgi?id=196764
Summary Date.setDate is too slow in WKWebView
chenfeng
Reported 2019-04-10 00:20:38 PDT
var sTime = Date.now(); var curTime = new Date(); for (var i = 0; i < 10000; i++) { curTime.setDate(i); } console.log(Date.now() - sTime) The execution time of the above code in different browsers: Wkwebview: 16000ms Safari: 120ms Chrome: 3ms
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Radar WebKit Bug Importer
Comment 1 2019-04-12 10:13:47 PDT
<rdar://problem/49854826>
Yusuke Suzuki
Comment 2 2021-02-01 02:34:16 PST
Now, Safari's perf is on per to Chrome. Note: previously, JSC uses localtime_r. But this is super slow. Now we use ICU instead. *** This bug has been marked as a duplicate of bug 218348 ***
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