Suppose I want to get the lowest property of an object in an array of said objects, might there be a...

# codereview

[Daniel]

Suppose I want to get the lowest property of an object in an array of said objects, might there be a better way than:

source.minBy { it.startX }?.startX ?: 0

Maybe a way to get the value of the property directly from the collection instead the object which it belongs to?

[kevinmost]

ferranis: source.map { it.startX }.min() ?: 0

[Daniel]

Thank you for your reply! This seems to at least remove the indirection over the object

[kevinmost]

you can also use a method reference here. I dunno what your source class name is, but if the class name is Foo, source.map(Foo::startX).min() ?: 0, if you think that looks cleaner

[Daniel]

Thank you again! I didn't use this till now but this is a nice way to flatten the expression a bit! 🙂