toString 返回正则表达式的字符串形式。
toString() - 语法
RegExpObject.toString();
toString() - 返回值
返回正则表达式的字符串表示形式。
toString() - 示例
<html> <head> <title>JavaScript RegExp toString Method</title> </head> <body> <script type="text/javascript"> var str="Javascript is an interesting scripting language"; var re=new RegExp( "script", "g" ); var result=re.toString(str); document.write("Test 1 - returned value : " + result); re=new RegExp( "/", "g" ); var result=re.toString(str); document.write("<br />Test 2 - returned value : " + result); </script> </body> </html>
运行上面代码输出
Test 1 - returned value : /script/g Test 2 - returned value : /\//g