[Webkit-unassigned] [Bug 187759] New: Inconsistent output compared with other JS engines

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=187759

            Bug ID: 187759
           Summary: Inconsistent output compared with other JS engines
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sunlili at ict.ac.cn

Created attachment 345244

  --> https://bugs.webkit.org/attachment.cgi?id=345244&action=review

js source code

Hello,
    Running js code in attachment, output in ChakraCore, V8 and SpiderMonkey is:

["",""]
r.lastIndex=0
RegExp.${_,1,...,9}=["a","","","","","","","","",""]
BT_FLAG

    But, JavaScriptCore is:

["",""]
r.lastIndex=0
RegExp.${_,1,...,9}=["","","","","","","","","",""]
BT_FLAG


BT group
2018.7.18

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