多行正则表达式是对象的只读布尔属性。它指定是否一个特定的正则表达式进行多行匹配,即,不管是否使用“m”属性创建。
语法
RegExpObject.multiline
下面是参数的详细信息:
返回值:
例子:
<html> <head> <title>JavaScript RegExp multiline Property</title> </head> <body> <script type="text/javascript"> var re = new RegExp( "string" ); if ( re.multiline ){ document.write("Test1-multiline property is set"); }else{ document.write("Test1-multiline property is not set"); } re = new RegExp( "string", "m" ); if ( re.multiline ){ document.write("<br/>Test2-multiline property is set"); }else{ document.write("<br/>Test2-multiline property is not set"); } </script> </body> </html>
这将产生以下结果:
Test1 - multiline property is not set Test2 - multiline property is set