leetcode-problemset/leetcode/problem/return-length-of-arguments-passed.html

Write a function&nbsp;<code>argumentsLength</code> that returns the count of arguments passed to it.
<p>&nbsp;</p>
<p><strong class="example">Example 1:</strong></p>

<pre>
<strong>Input:</strong> argsArr = [5]
<strong>Output:</strong> 1
<strong>Explanation:</strong>
argumentsLength(5); // 1

One value was passed to the function so it should return 1.
</pre>

<p><strong class="example">Example 2:</strong></p>

<pre>
<strong>Input:</strong> argsArr = [{}, null, &quot;3&quot;]
<strong>Output:</strong> 3
<strong>Explanation:</strong> 
argumentsLength({}, null, &quot;3&quot;); // 3

Three values were passed to the function so it should return 3.
</pre>

<p>&nbsp;</p>
<p><strong>Constraints:</strong></p>

<ul>
	<li><code>argsArr is a valid JSON array</code></li>
	<li><code>0 &lt;= argsArr.length &lt;= 100</code></li>
</ul>