Below are the approaches used to find the length of JavaScript dictionary

Below are the approaches used to find the length of JavaScript dictionary

Table of Content Using Object.keys() Using Object.getOwnPropertyNames() Using hasOwnProperty()...

Approach 1: Using Object.keys()

JavaScript uses the Object.keys() method to extract an object’s enumerable property names and promptly returns them as an array. This operation involves the object’s own properties, thereby excluding any inherited from its prototype chain. Consequently, one can utilize this resultant array for determining either the length or count of these specific properties....

Aproach 2: Using Object.getOwnPropertyNames()

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Approach 3: Using hasOwnProperty()

The Object.getOwnPropertyNames() method in JavaScript is a standard built-in object which returns all properties that are present in a given object except for those symbol-based non-enumerable properties....