# Using @sprintf inside a macro

**URL:** <https://discourse.julialang.org/t/using-sprintf-inside-a-macro/45275>\
**Category:** General Usage\
**Tags:** macros\
**Created:** [August 20, 2020, 4:37pm UTC](https://discourse.julialang.org/t/using-sprintf-inside-a-macro/45275 "2020-08-20T16:37:02Z")\
**Posts on this page:** 1\
**Showing post:** 20

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**Author:** ![dlakelan](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/dlakelan/32/8491_2.png) [@dlakelan](https://discourse.julialang.org/u/dlakelan)\
**Post date:** [August 24, 2020, 6:20pm UTC](https://discourse.julialang.org/t/using-sprintf-inside-a-macro/45275/20 "2020-08-24T18:20:36Z")

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I came up with this solution:

```julia
julia> macro myprintf(x,y...)
       :(print(now(),":",@sprintf($x,($(y...),)...)))
       end

```

after reading [this post](https://discourse.julialang.org/t/please-explain-fine-point-of-splatting-syntax-in-macros/16303)

But I don’t know why it works 🤣

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