Checking Arrays in JavaScript with Array.isArray() |
Array.isArray() is a built-in method in JavaScript that allows you to check if a given value is an array. In this video, we'll explore how to use Array.isArray() to check if a value is an array and why this is important for writing robust and reliable code.
We'll start by looking at some examples of code that check if a value is an array using traditional methods like typeof and instanceof. We'll then introduce Array.isArray() and show how it can be used to simplify this code and make it more reliable.
We'll also cover some common pitfalls to avoid when working with Array.isArray(), such as using it with non-array objects and how to handle edge cases where values may not be strictly typed as arrays.
Finally, we'll explore some use cases for Array.isArray(), such as validating user input and checking if an API response is an array.
By the end of this video, you'll have a solid understanding of Array.isArray() and how to use it to write robust and reliable code in JavaScript
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