220507 2021-01-11 05:12:53 -0800 An issue about %TypedArray%.prototype.sort 2021-01-20 14:50:15 -0800 1 1 1 Unclassified WebKit JavaScriptCore WebKit Local Build PC Linux RESOLVED DUPLICATE 216952 InRadar P2 Normal --- 1 nisl_grammarly1 webkit-unassigned mark.lam webkit-bug-importer oldest_to_newest 1718664 0 nisl_grammarly1 2021-01-11 05:12:53 -0800 #version: dbae081(https://github.com/WebKit/WebKit-http/commit/dbae081ad7e22d9ab61edf2f337f6c2bb593c7f8) #Testcase: a = 10; b = new Uint8Array(a); b.sort(1); #Command: ./webkit/WebKitBuild/Release/bin/jsc testcase.js #Output: No exceptions are thrown #Expected output: TypeError: 1 is not a function #Description: According to ES2019 standard, the steps of '%TypedArray%.prototype.sort' are as follows. >22.2.3.26%TypedArray%.prototype.sort ( comparefn ) > 1. If comparefn is not undefined and IsCallable(comparefn) is false, throw a TypeError exception. > ... When executing the above test case, the parameter of %TypedArray%.prototype.sort is 1. According to the standard, a TypeError should be thrown, but JavaScriptCore did not throw any error. The ECMAScript standard reference is as follow: http://www.ecma-international.org/ecma-262/10.0/index.html#sec-%typedarray%.prototype.sort 1720334 1 webkit-bug-importer 2021-01-18 05:13:12 -0800 <rdar://problem/73320341> 1721011 2 mark.lam 2021-01-20 14:50:15 -0800 *** This bug has been marked as a duplicate of bug 216952 ***