Workaround to have int be a decimal?

support
1

I get it that an int can’t start with a 0 or a decimal, but is there a workaround for this?

Here’s my use case:

---
sizes: [".25", ".5", "1", "2"]
width: 600
---
{{ $sizes := .Params.sizes}}
{{ $width := .Params.width}}

This parameter is then ranged and each index of the array is multiplied
{{ $multiply_size := mul (int $width) (int (index $sizes $i )) }}

All of this works as long as it’s a whole number. Any ideas on a workaround to get decimals to work in this scenario?

2

When you multiply an integer with an integer, you get an int as the result.
But when you multiply an integer with a decimal value, you get a decimal value as the result.

You can try something like this:

{{ $widthDecimal := mul (int $width) 1.0 }}
{{ $multiply_size := mul $widthDecimal (int (index $sizes $i )) }}
1 Like
3

What @Jura said is my go-to truck as well.

In this case though, you simply need to use float instead of int.

(float foo) would be equivalent to (mul foo 1.0).

1 Like
4

Also, do you need the sizes to be strings? Unfortunately, Hugo converts them to strings anyways internally (ref) but for clarity you can write:

sizes: [0.25, 0.5, 1.0, 2.0]
5

I didn’t even realise the float function. Thanks! :slight_smile:

With float the code simply becomes if I’m not mistaken:

{{ $multiply_size := mul (int $width) (float (index $sizes $i )) }}
2 Likes
6

Thanks @Jura and @kaushalmodi using float did the trick!