RegExp.$` (4) : RegExp Object « Regular Expressions « JavaScript Tutorial






  1. JavaScript Tutorial
  2. Regular Expressions
  3. RegExp Object

The RegExp.$` property represents the substring preceding the most recent pattern match.

This is the same as using the leftContext property.

<html>
    <body>
    <script language="JavaScript">
    <!--
        pat = /is*/g;
        var str = "This is a test.";
        myArray = pat.exec(str);
    
        document.write("In the string: " + "<b>");
        document.write("I know where the fish is tonight" + "</b><br><br>");
        document.write("The RegExp.leftContext is: " + RegExp.leftContext);
    -->
    </script>
    </body>
    </html>








26.7.RegExp Object
26.7.1.RegExp()
26.7.2.RegExp,$* (1)
26.7.3.RegExp.$& (2)
26.7.4.RegExp,$_ (3)
26.7.5.RegExp.$` (4)
26.7.6.RegExp.$' (5)
26.7.7.RegExp.$+ (6)
26.7.8.RegExp.$1,$2,..$9
26.7.9.RegExp.compile()
26.7.10.RegExp.exec()
26.7.11.RegExp.global
26.7.12.RegExp.ignoreCase
26.7.13.RegExp.input
26.7.14.RegExp.lastIndex
26.7.15.RegExp.lastMatch
26.7.16.RegExp.lastParen
26.7.17.RegExp.leftContext
26.7.18.RegExp.multiline
26.7.19.RegExp.rightContext
26.7.20.RegExp.source
26.7.21.RegExp.test()