# Splat ComponentArray into keyword arguments
**URL:** https://discourse.julialang.org/t/splat-componentarray-into-keyword-arguments/75003
**Category:** General Usage
**Tags:** question, componentarrays
**Created:** [January 21, 2022, 8:14pm UTC](https://discourse.julialang.org/t/splat-componentarray-into-keyword-arguments/75003 "2022-01-21T20:14:01Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@Christopher\_Fisher](https://discourse.julialang.org/u/Christopher_Fisher)
#### Post date: [January 21, 2022, 8:14pm UTC](https://discourse.julialang.org/t/splat-componentarray-into-keyword-arguments/75003/1 "2022-01-21T20:14:01Z")
Hi all,
I have a situation in which “splatting” a ComponentArray into keyword arguments would be useful. Unfortunately, it is not currently possible. I was wondering whether it would be possible in principle? Could I add that capability?
**MWE**
```julia
using ComponentArrays
x = ComponentArray(a = 1, b = 2)
f(;a, b) = a + b
f(;x...)
```
---
### Author:  [@jonniedie](https://discourse.julialang.org/u/jonniedie)
#### Post date: [January 21, 2022, 8:21pm UTC](https://discourse.julialang.org/t/splat-componentarray-into-keyword-arguments/75003/2 "2022-01-21T20:21:34Z")
That might be a good thing to add. It looks like it may only need a `merge` method defined. Would you mind opening up an issue for that?
In the meantime, though, you could always do something like:
```julia
julia> f(; NamedTuple(x)...)
3
```
---
### Author:  [@Christopher\_Fisher](https://discourse.julialang.org/u/Christopher_Fisher)
#### Post date: [January 21, 2022, 8:30pm UTC](https://discourse.julialang.org/t/splat-componentarray-into-keyword-arguments/75003/3 "2022-01-21T20:30:23Z")
Awesome. I will add an issue. Thanks!
---
### Author:  [@Christopher\_Fisher](https://discourse.julialang.org/u/Christopher_Fisher)
#### Post date: [January 21, 2022, 8:51pm UTC](https://discourse.julialang.org/t/splat-componentarray-into-keyword-arguments/75003/4 "2022-01-21T20:51:28Z")
> [@jonniedie](#):
>
> `f(; NamedTuple(x)...)`
Although converting to a `NamedTuple` does work, it does add some overhead. Out of curiosity, would your more permanent solution with `merge` be more efficient?
---
### Author:  [@jonniedie](https://discourse.julialang.org/u/jonniedie)
#### Post date: [January 21, 2022, 9:03pm UTC](https://discourse.julialang.org/t/splat-componentarray-into-keyword-arguments/75003/5 "2022-01-21T21:03:53Z")
Unfortunately `merge` is going to have to convert to `NamedTuple` to perform the merge with the empty `NamedTuple` anyway (which is how keyword argument splatting works). I don’t think there is any way to buy into the keyword arg splatting without doing this. Maybe I’m wrong, though. Might be worth checking.