# How to "delete" a key from NamedTuple

**URL:** <https://discourse.julialang.org/t/how-to-delete-a-key-from-namedtuple/38179>\
**Category:** New to Julia\
**Created:** [April 25, 2020, 7:29am UTC](https://discourse.julialang.org/t/how-to-delete-a-key-from-namedtuple/38179 "2020-04-25T07:29:21Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![xiaodai](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/xiaodai/32/15937_2.png) [@xiaodai](https://discourse.julialang.org/u/xiaodai)\
**Post date:** [April 25, 2020, 7:29am UTC](https://discourse.julialang.org/t/how-to-delete-a-key-from-namedtuple/38179/1 "2020-04-25T07:29:21Z")

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I know tuples are meant to be immutable, but I am interested in a way to create a new named tuple `B` that is the same as `A` except that it has `:key1` deleted.

I was hoping something like this would work

`B = delete(A, :key)`

but it doesn’t.

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**Author:** ![dpsanders](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/dpsanders/32/3573_2.png) [@dpsanders](https://discourse.julialang.org/u/dpsanders)\
**Post date:** [April 25, 2020, 7:56am UTC](https://discourse.julialang.org/t/how-to-delete-a-key-from-namedtuple/38179/2 "2020-04-25T07:56:34Z")

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> **[GitHub - JeffreySarnoff/NamedTupleTools.jl: some utilities for working with...](https://github.com/JeffreySarnoff/NamedTupleTools.jl#delete)**
>
> some utilities for working with NamedTuples. Contribute to JeffreySarnoff/NamedTupleTools.jl development by creating an account on GitHub.

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**Author:** ![goretkin](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/goretkin/32/167_2.png) [@goretkin](https://discourse.julialang.org/u/goretkin)\
**Post date:** [April 25, 2020, 7:56am UTC](https://discourse.julialang.org/t/how-to-delete-a-key-from-namedtuple/38179/3 "2020-04-25T07:56:47Z")

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Unless I misunderstand, `delete` didn’t work because there is no such function in Base.

Take a look at: [GitHub - JeffreySarnoff/NamedTupleTools.jl: some utilities for working with NamedTuples](https://github.com/JeffreySarnoff/NamedTupleTools.jl#delete)

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**Author:** ![Tamas\_Papp](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tamas_papp/32/25949_2.png) [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Post date:** [April 25, 2020, 8:34am UTC](https://discourse.julialang.org/t/how-to-delete-a-key-from-namedtuple/38179/4 "2020-04-25T08:34:07Z")

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See `Base.structdiff`.