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JavaScript Interview Question
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View Video Transcript0:00
What is the output of this JavaScript code
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The output is this array. But what are these six empty items? See, firstly we
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initialize an array with four elements 1 2 3 & 4. Then we assign an element 11
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with the 10th position or index in the array. Here the JavaScript expands the
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array to accommodate 11 at the 10th index. And the six indices that don't
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have any elements are given undefined value. So if we check the length of this
