# Unexpected : isstructtype( Vector{Float64}) =\> true

**URL:** <https://discourse.julialang.org/t/unexpected-isstructtype-vector-float64-true/79283>\
**Category:** General Usage\
**Created:** [April 10, 2022, 12:24am UTC](https://discourse.julialang.org/t/unexpected-isstructtype-vector-float64-true/79283 "2022-04-10T00:24:41Z")\
**Posts on this page:** 1\
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**Author:** ![gustaphe](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/gustaphe/32/18174_2.png) [@gustaphe](https://discourse.julialang.org/u/gustaphe)\
**Post date:** [April 10, 2022, 4:58am UTC](https://discourse.julialang.org/t/unexpected-isstructtype-vector-float64-true/79283/4 "2022-04-10T04:58:45Z")

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I seem to remember reading in the docs not to use `isstructtype` because a lot of things are struct types in Julia which don’t intuitively seem structy.

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