if
Syntax
if EXPR
In Go templates, the falsy values are false, 0, any nil pointer or interface value, and any array, slice, map, or string of length zero. Everything else is truthy.
{{ $var := "foo" }}
{{ if $var }}
{{ $var }} → foo
{{ end }}
Use with the else statement:
{{ $var := "foo" }}
{{ if $var }}
{{ $var }} → foo
{{ else }}
{{ print "var is falsy" }}
{{ end }}
Use else if to check multiple conditions.
{{ $var := 12 }}
{{ if eq $var 6 }}
{{ print "var is 6" }}
{{ else if eq $var 7 }}
{{ print "var is 7" }}
{{ else if eq $var 42 }}
{{ print "var is 42" }}
{{ else }}
{{ print "var is something else" }}
{{ end }}
See Go’s text/template documentation for more information.