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26 lines
855 B
HTML
26 lines
855 B
HTML
Write code that enhances all arrays such that you can call the <code>array.last()</code> method on any array and it will return the last element. If there are no elements in the array, it should return <code>-1</code>.
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<p> </p>
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<p><strong class="example">Example 1:</strong></p>
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<pre>
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<strong>Input:</strong> nums = [1,2,3]
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<strong>Output:</strong> 3
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<strong>Explanation:</strong> Calling nums.last() should return the last element: 3.
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</pre>
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<p><strong class="example">Example 2:</strong></p>
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<pre>
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<strong>Input:</strong> nums = []
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<strong>Output:</strong> -1
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<strong>Explanation:</strong> Because there are no elements, return -1.
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</pre>
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<p> </p>
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<p><strong>Constraints:</strong></p>
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<ul>
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<li><code>0 <= arr.length <= 1000</code></li>
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<li><code>0 <= arr[i] <= 1000</code></li>
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</ul>
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