範例程式-RegExp
把下列程式碼貼在regexp-sample.html上執行，可以測試 test, match 兩種函式。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>RegExp型態的函式</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
</head>
<body>
<h3>RegExp型態的函式</h3>
<hr>
正規表示式：
new RegExp(" <input id="pattern" type="text" value="Pen"> ","
<input id="attributes" type="text" value="i" size="1">")<br><br>
比對字串：
<textarea id="str" type="text" cols=50 rows=3>I have 123 pens and 456 pencils.</textarea><br><br>
test結果：
<div id="test-result" style="background:PapayaWhip "></div><br>
exec結果：
<div id="exec-result" style="background:PapayaWhip "></div>
<script type="text/javascript">
$(function () {
$("#pattern , #attributes , #str").keyup(checkRegExp);
checkRegExp();
});
function checkRegExp(e) {
var str = $("#str").val();
var pattern;
if($("#attributes").val()){
pattern = new RegExp($("#pattern").val(),$("#attributes").val());
} else {
pattern = new RegExp($("#pattern").val());
}
testResult = pattern.test(str);
execResult = pattern.exec(str);
console.log("正規表示式: " + pattern + " 字串: " + str + " 驗證結果:" + testResult);
console.log(execResult);
$("#test-result").html(testResult ? "true" : "false");
$("#exec-result").html(execResult+"<br>index："+execResult.index+"<br>input:："+execResult.input);
}
</script>
</body>
</html>