RegExp Objects III -- String Methods

• String object methods have been added to JavaScript 1.2 to handle regular expressions -- consider an ordinary string ordstr

  • ordstr.search( regexp ); // like test(…)and equivalent to ordstr =~ m/regexp/ in PERLreturns true or false
  • ordstr.match( regexp ); // like exec(…)and returns a results array as described for exec
  • newstr = oldstr.replace( regexp, newsubstr ); // equivalent to ordstr =~ s/regexp/newsubstr/ in PERL but returns a new string -- leaving original unchanged

• The split(…) method now takes a regular expression as optional parameter:

  • var strArray = str.split( /\s*;\s*/ );
  • splits using ; surrounded by any whitespace characters

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