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JavaScript JavaScript Loops, Arrays and Objects Tracking Data Using Objects Mixing and Matching Arrays and Objects

Vic Mercier
Vic Mercier
3,276 Points
Posted by Vic Mercier
Vic Mercier
3,276 Points

for in loop and array of objects

We cannot use a for in loop with array of object?I think no because it's an array instead of an object.Am I right?

1 Answer

Steven Parker
Steven Parker
229,732 Points
Steven Parker
Steven Parker
229,732 Points

You can but you may not want to.

The problem with using "for...in" with an array is that it will iterate through all properties of the array, not just the numbered items, and the keys will be strings.

For that reason, a standard "for" loop is recommended with arrays unless you have a specific need to access the other properties (very unlikely!).