返回到:Prototype – 数组处理
此方法返回数组的新版本,没有任何 null/undefined 值。
语法
array.compact();
返回值
返回一个新数组,没有任何未定义值的空值。
例子
<html> <head> <title>Prototype examples</title> <script type = "text/javascript" src = "/javascript/prototype.js"></script> <script> function showResult() { var oldArr =['Sam','Justin','Andrew','Dan', null, undefined]; alert("Guys in old Arr" ); oldArr.each(function(item) { alert(item ); }); var newArr = oldArr.compact(); alert("Guys in new Arr" ); newArr.each(function(item) { alert(item ); }); } </script> </head> <body> <p>Click the button to see the result.</p> <br /> <br /> <input type = "button" value = "Result" onclick = "showResult();"/> </body> </html>
返回到:Prototype – 数组处理
作者:terry,如若转载,请注明出处:https://www.web176.com/prototype_api/8795.html