Object Data Types in JavaScript

<span class="pln">
</span><span class="com">// Object Data Types</span><span class="pln">
</span><span class="kwd">let</span><span class="pln"> objectVar </span><span class="pun">=</span><span class="pln"> </span><span class="pun">{</span><span class="pln">  </span><span class="pun">};</span><span class="pln"> </span><span class="com">// Object</span><span class="pln">

</span><span class="kwd">let</span><span class="pln"> arrayVar </span><span class="pun">=</span><span class="pln"> </span><span class="pun">[</span><span class="lit">1</span><span class="pun">,</span><span class="pln"> </span><span class="lit">2</span><span class="pun">,</span><span class="pln"> </span><span class="lit">3</span><span class="pun">];</span><span class="pln">         </span><span class="com">// Array</span><span class="pln">

</span><span class="com">// let functionVar = function() {};  // Function</span><span class="pln">
</span><span class="kwd">let</span><span class="pln"> functionVar </span><span class="pun">=</span><span class="pln"> </span><span class="pun">()</span><span class="pln"> </span><span class="pun">=&gt;</span><span class="pln"> console</span><span class="pun">.</span><span class="pln">log</span><span class="pun">(</span><span class="lit">2</span><span class="pun">+</span><span class="lit">3</span><span class="pun">)</span><span class="pln"> </span><span class="pun">;</span><span class="pln">  </span><span class="com">// Function</span><span class="pln">

functionVar</span><span class="pun">();</span><span class="pln">

console</span><span class="pun">.</span><span class="pln">log</span><span class="pun">(</span><span class="kwd">typeof</span><span class="pln"> objectVar</span><span class="pun">);</span><span class="pln">    </span><span class="com">// Output: object</span><span class="pln">
console</span><span class="pun">.</span><span class="pln">log</span><span class="pun">(</span><span class="kwd">typeof</span><span class="pln"> arrayVar</span><span class="pun">);</span><span class="pln">     </span><span class="com">// Output: object (arrays are a type of object)</span><span class="pln">
console</span><span class="pun">.</span><span class="pln">log</span><span class="pun">(</span><span class="kwd">typeof</span><span class="pln"> functionVar</span><span class="pun">);</span><span class="pln">  </span><span class="com">// Output: function</span>