Custom Variable does not change after iteration

[Phsnomy_Ann]

Hugo Version:

Hugo Static Site Generator v0.80.0/extended linux/amd64 BuildDate: unknown

Please look at this code:

{{ $loaded := 0 }}
{{ $isloaded :=0 }}
{{ range .Data.Pages }}
    { if le $loaded 10 }}
        <a href="{{ .RelPermalink }}">{{ .Title }}</a><br>
        {{ $loaded }}
        {{ $loaded := ( add $loaded  1 ) }}
        {{ $loaded }}
    {{ else if eq $isloaded 0 }}
         ...<br>
         {{ $isloaded := 1 }}
    {{ end }}
{{ end }}

I expect the output to be:

blah
0 1 blah
1 2 blah
....

But the output is

blah
0 1 blah
0 1 blah
....

It seems that Custom Variable does not change after iteration. It confused me. Why does that happen?( Is that some issue related to scopes? ) And any solutions?

Thanks for reading this post.

[alexandros]

You are not overwriting the variable, rather you are re-declaring it. Also in your code above you have missed a curly bracket i.e. { if le $loaded 10 }}

See this post about overwriting variables:

Question about variable overwrites in Hugo 0.48

So, the new feature allows variable overwrites, but there are still scoping in play here – similar to how it would work in plain Go code. To cut a long story short, you need to initialize the variable in (or on the outside of) the scope where you intend to use it. Set it to some empty value if you’re not sure that it will be used. {{ $var := "" }} {{ if .IsHome }} {{ $var = "Hugo Home" }} {{ end }} Var is {{ $var }}

Hint: you declare a variable with := then you overwrite it with =

[Phsnomy_Ann]

Thanks