Sparse Array
The sparse array in JavaScript refers to an array with commas, that is, no elements are there in the array. When this array is printed, the output will be a text saying ’empty array’ with the length. Here the length represents the number of commas.
The following is the code and the output.
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Deleting an element
An element from an array is deleted using the delete operator. The length of array will not be changed. This is because when a delete operation is used to delete an element, there will be an empty slot in the deleted position. When you try to access the deleted element in that particular index, the result will be ‘undefined’. The delete operator is not recommended for removing elements from arrays, especially when you want to maintain the integrity of the array.
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