1

I have some objects like this: (wordpress attachment object)

attachment.sizes (which is an object and contains:) 
 .full (each contains height and width:)
 .height
 .width
 .medium
 .height
 .width
 .thumbnail
 .height
 .width

And then I have another object:

props.size (which is either "full","medium" or "thumbnail")

Can I in some way write similar to 

attachment.sizes.(props.size).height

To get the height? (That did not work when I tried)

asked Feb 19, 2014 at 13:33
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  • 1
    I think attachment.sizes[props.size].height should work. Commented Feb 19, 2014 at 13:34

1 Answer 1

4

Yes, using []:

attachment.sizes[props.size].height

Both notations, a.b and a['b'], are equivalent, but only [] let you use a variable name as the property.

answered Feb 19, 2014 at 13:35
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