JScript 3.1

• New features in JScript 3.1 (MSIE4.0):

  • Conditional execution (meta-statements)
  • New event handlers (39 in all!)
  • New statements: switch and do…while
  • Two new identity operators (=== and !==) which insist on variable types matching (default is to convert types in == and !=)
  • Perl4-compatible regular expressions
  • Debugger support

• Adequate documentation is lacking, however

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