原型 - match() 方法
此方法检查元素是否与给定的 CSS 选择器匹配。
语法
element.match(selector);
返回值
返回 Boolean 值。如果找到了匹配项,则返回一个 true,否则返回 false。
示例
<html> <head> <title>Prototype examples</title> <script type = "text/javascript" src = "/javascript/prototype.js"></script> <script> function showResult() { if( $('fruits').match('ul') ) { alert( " $('fruits').match('ul') returns true " ); } else { alert( " $('fruits').match('ul') returns false " ); } if( $('mcintosh').match('li#mcintosh.yummy') ) { alert("$('mcintosh').match('li#mcintosh.yummy') returns true"); } else { alert("$('mcintosh').match('li#mcintosh.yummy') returns false"); } if( $('fruits').match('p') ) { alert( " $('fruits').match('p') returns true " ); } else { alert( " $('fruits').match('p') returns false " ); } } </script> </head> <body> <p>Click the button to see the result.</p> <ul id = "fruits"> <li id = "apples"> <ul> <li id = "golden-delicious">Golden Delicious</li> <li id = "mutsu" class = "yummy">Mutsu</li> <li id = "mcintosh" class = "yummy">McIntosh</li> <li id = "ida-red">Ida Red</li> </ul> </li> </ul> <br /> <input type = "button" value = "Show Result" onclick = "showResult();"/> </body> </html>
输出
prototype_element_object.htm
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