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where as a function? #73

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imacks opened this issue Sep 26, 2018 · 3 comments
Open

where as a function? #73

imacks opened this issue Sep 26, 2018 · 3 comments
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enhancement pr welcome

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@imacks
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imacks commented Sep 26, 2018

this is a great templating engine! is it possible to pass a condition to a custom function? i want to implement a where type of filtering functionality:

  • where:
[1,3,5] | where ($_ <4)

[1,3]
@imacks imacks changed the title for as a function? where as a function? Sep 26, 2018
@xoofx
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xoofx commented Oct 29, 2018

This is not currently possible. It would require to implement this feature, similar to the way we implement the operator @ when you want to pass a function pointer

@xoofx xoofx mentioned this issue Oct 29, 2018
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@lafar6502
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@xoofx can you give some examples of how what is supported with '@' operator? Or anonymous functions - is this supported? If so, what is the use case?

@xoofx
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xoofx commented Dec 28, 2018

can you give some examples of how what is supported with '@' operator?

There is a bit of doc in https://github.com/lunet-io/scriban/blob/master/doc/language.md#7-functions

By default, when you are using a variable, it is going to call it if it is a function. Using the @ prefix allows to store a reference to the function itself

Or anonymous functions - is this supported? If so, what is the use case?

Anonymous functions are currently not supported. The closest builtin is the wrap statement

@xoofx xoofx mentioned this issue Feb 25, 2022
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@xoofx @lafar6502 @imacks