176074 2017-08-29 15:19:03 -0700 Web Inspector: Use strict mode for String.prototype.* methods 2025-12-16 12:26:06 -0800 1 1 1 Unclassified WebKit Web Inspector WebKit Nightly Build All All RESOLVED FIXED InRadar P2 Normal --- 1 nvasilyev brandonstewart brandonstewart inspector-bugzilla-changes webkit-bug-importer oldest_to_newest 1343253 0 nvasilyev 2017-08-29 15:19:03 -0700 For ECMAScript classes, strict mode is implicit. In Utilities.js, we don't use classes. Currently, strict mode is only used for "truncate" method: https://bugs.webkit.org/show_bug.cgi?id=149708#c8. We should use it for other. When strict mode isn't used, `this` is always an object. > "abc".trimEnd(5) < String {0: "a", 1: "b", 2: "c", length: 3} This may lead to unexpected behavior: > "abc".trimEnd(5) === "abc" < false It also makes String.prototype.* operations slower. 1343286 1 nvasilyev 2017-08-29 16:06:36 -0700 All String.prototype.* methods except String.prototype.extendedLocaleCompare are untested 😱 1343307 2 319304 nvasilyev 2017-08-29 16:39:32 -0700 Created attachment 319304 WIP This requires more work than I anticipated. Tabling this until the week of tests. 2165772 3 webkit-bug-importer 2025-12-14 10:27:18 -0800 <rdar://problem/166488067> 2165773 4 brandonstewart 2025-12-14 10:28:53 -0800 Pull request: https://github.com/WebKit/WebKit/pull/55378 2166311 5 ews-feeder 2025-12-16 12:26:03 -0800 Committed 304532@main (7983d6668967): <https://commits.webkit.org/304532@main> Reviewed commits have been landed. Closing PR #55378 and removing active labels. 319304 2017-08-29 16:39:32 -0700 2017-08-29 16:39:32 -0700 WIP WIP.txt text/plain 9097 nvasilyev ZGlmZiAtLWdpdCBhL0xheW91dFRlc3RzL2luc3BlY3Rvci91bml0LXRlc3RzL3N0cmluZy11dGls aXRpZXMtZXhwZWN0ZWQudHh0IGIvTGF5b3V0VGVzdHMvaW5zcGVjdG9yL3VuaXQtdGVzdHMvc3Ry aW5nLXV0aWxpdGllcy1leHBlY3RlZC50eHQKaW5kZXggNWU4YmE4MDQuLjA5YjMwNzggMTAwNjQ0 Ci0tLSBhL0xheW91dFRlc3RzL2luc3BlY3Rvci91bml0LXRlc3RzL3N0cmluZy11dGlsaXRpZXMt ZXhwZWN0ZWQudHh0CisrKyBiL0xheW91dFRlc3RzL2luc3BlY3Rvci91bml0LXRlc3RzL3N0cmlu Zy11dGlsaXRpZXMtZXhwZWN0ZWQudHh0CkBAIC0yMCw2ICsyMCwzNCBAQCBQQVNTOiBpbnRlZ2Vy IGZvcm1hdCBzcGVjaWZpZXIgd2l0aCBzdHJpbmcgYXJndW1lbnQgc2hvdWxkIGF0dGVtcHQgY29u dmVyc2lvbiB0bwogUEFTUzogaW50ZWdlciBmb3JtYXQgc3BlY2lmaWVyIHdpdGggSW5maW5pdHkg YXJndW1lbnQgc2hvdWxkIHNob3cgIk5hTiIKIFBBU1M6IGludGVnZXIgZm9ybWF0IHNwZWNpZmll ciB3aXRoIE5hTiBhcmd1bWVudCBzaG91bGQgc2hvdyAiTmFOIgogCistLSBSdW5uaW5nIHRlc3Qg Y2FzZTogU3RyaW5nLnByb3RvdHlwZS5pc0xvd2VyQ2FzZQorUEFTUzogIkFiYyIgaXMgbm90IGxv 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