Array vs Array-Like Objects in JavaScript – Learn the Difference
The main similarities between a regular array and an array-like object are as follows:
- They both have the
length
property. - The two object's properties start from the zeroth (
0
) index.
Here are the main differences between the two objects:
- An array-like object has only a few—not all—of the features of a regular JavaScript array.
- An array-like object does not have built-in methods like
map()
,pop()
, andforEach()
. However, a regular array has those methods.
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You can use the spread operator or the Array.from()
method to convert an array-like object to a regular array.