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JavaScript method to obtain the size of a specified object_javascript tips

WBOY
WBOYOriginal
2016-05-16 15:51:571303browse

The example in this article describes how to obtain the size of a specified object using JavaScript. Share it with everyone for your reference. The details are as follows:

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;
}

Usage is as follows:

// Arbitrary object
var something = {
 dog: "cat",
 cat: "dog"
}
console.log(objectSize(something));
// Logs: 2

I hope this article will be helpful to everyone’s JavaScript programming design.

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