原型 - clone() 方法
此方法返回数组的副本,而不会更改原始数组。
语法
array.clone();
返回值
返回一个新的克隆数组。
示例
<html> <head> <title>Prototype examples</title> <script type = "text/javascript" src = "/javascript/prototype.js"></script> <script> function showResult() { var oldArr = ['Sam', 'Justin', 'Andrew', 'Dan']; var newArr = oldArr.clone(); alert("Guys in old Arr" ); oldArr.each(function(item) { alert(item ); }); 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>
输出
prototype_array_processing.htm
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