本文實例講述了JavaScript獲得指定對象大小的方法。分享給大家供大家參考。具體如下：
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 objectvar something = { dog: "cat", cat: "dog"}console.log(objectSize(something));// Logs: 2希望本文所述對大家的javascript程序設計有所幫助。
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