global是正则表达式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全局匹配。否则它使用“g”属性创建。
语法
RegExpObject.global
下面是参数的详细信息:
返回值:
例子:
<html> <head> <title>JavaScript RegExp global Property</title> </head> <body> <script type="text/javascript"> var re = new RegExp( "string" ); if ( re.global ){ document.write("Test1 - Global property is set"); }else{ document.write("Test1 - Global property is not set"); } re = new RegExp( "string", "g" ); if ( re.global ){ document.write("<br />Test2 - Global property is set"); }else{ document.write("<br />Test2 - Global property is not set"); } </script> </body> </html>
这将产生以下结果:
Test1 - Global property is not set Test2 - Global property is set