how to check if array is empty in javascript

to check if an array is empty in javascript, you can use the `length` property of the array. if the length of the array is `0`, then the array is considered empty. here's a step-by-step tutorial with a code example:

1. **using the `length` property**: the `length` property of an array returns the number of elements in the array. when the length is `0`, it means the array is empty.

2. **code example**:

in the code example above, we first define an empty array `emptyarray`. we then check if the length of the array is equal to `0`. if it is, we log a message saying "the array is empty". otherwise, we log "the array is not empty".

3. **output**:
when you run the code example above, it will output:

this confirms that the array `emptyarray` is indeed empty.

by following these steps and using the `length` property, you can easily check if an array is empty in javascript.

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