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  1. #1
    SitePoint Enthusiast
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    Explorer 5.01 regular expression bug

    When Internet Explorer 5.01 for Windows hits the regular expression
    Code:
    /(?=<)|>/
    it complains about an unexpected quantifier. In fact, it seems to complain whenever I use a lookahead expression. Is there any way around this?

  2. #2
    SitePoint Addict
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    May 2004
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    Lookaheads are a JS 1.5 feature, IE 5.01 only supports JS 1.3.

  3. #3
    SitePoint Enthusiast
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    I see. Thanks for the info. Wouldn't it be nice if Microsoft would document these things properly?


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