{{/* bool */}}
{{ true }}
{{ false }}

{{ $myBool := true  }} {{- $myBool }}
{{ $myBool := false }} {{- $myBool }}
{{ printf "%+v (T:%T #v:%#v)" $myBool $myBool $myBool }}

{{ `Go Templates treat the following values as false:
false
0
any zero-length array, slice, map, or string
`}}
{{ `=> the int/float 0 is false, but the string "0" is true (non empty string)` }}

true
false

true
false
false (T:bool #v:false)

Go Templates treat the following values as false:
false
0
any zero-length array, slice, map, or string

=> the int/float 0 is false, but the string "0" is true (non empty string)