Java Reference
In-Depth Information
<title>Chapter 6, Figure 2</title>
</head>
<body>
<script>
var myString = "Paul, Paula, Pauline, paul, Paul";
var myRegExp = /Paul/gi;
myString = myString.replace(myRegExp, "Ringo");
alert(myString);
</script>
</body>
</html>
figure 6-5
You used this code to convert all instances of
Paul
or
paul
to
Ringo
.
However, you found that this code actually converts all instances of
Paul
to
Ringo
, even when the
word
Paul
is inside another word.
One way to solve this problem would be to replace the string
Paul
only where it is followed by a
non‐word character. The special character for non‐word characters is
\W
, so you need to alter the
regular expression to the following:
var myRegExp = /Paul\W/gi;
This gives the result shown in Figure 6-6.
