Create an Array in JavaScript [Tech Interview Quiz]
There are multiple ways to create arrays in JavaScript.
Consider the following code snippet and find the line that will trigger the error.
Code snippet as a picture
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What’s the correct way to create an array in JS?
Explanation
The first array,
a1
is declared using an empty array literal. There are no issues with it. In fact, it’s one of the most common ways of declaring an array in JS.The second one,
a2
is created by callingArray
as a function. It’s fine and it creates an empty array as well.The third array,
a3
is created using an explicit call to theArray
constructor as we use thenew
keyword there.
Answer
There’s no error. All three array have been created correctly.