本文实例讲述了JavaScript获得指定对象大小的方法。分享给大家供大家参考。具体如下：
function objectSize(the_object) { /* function to validate the existence of each key in the object to get the number of valid keys. */ var object_size = 0; for (key in the_object){ if (the_object.hasOwnProperty(key)) { object_size++; } } return object_size; }
用法如下：
// Arbitrary object var something = { dog: "cat", cat: "dog" } console.log(objectSize(something)); // Logs: 2
希望本文所述对大家的javascript程序设计有所帮助。
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