(See Template:T, Module:T, and Module:T/forms.)
#if:
[]
{{#if:}}
Case-sensitivity[]
The CURRENTYEAR
magic word is case-sensitive:
{{t|currentyear}}
→{{currentyear}}
{{t|cUrReNtYeAr}}
→{{cUrReNtYeAr}}
{{t|CURRENTYEAR}}
→{{CURRENTYEAR}}
The #switch:
parser function is case-insensitive:
Complete example[]
{{Say Hello
|
| <>
| literal
| <description>
| literal <description> literal
| =
| = <>
| = literal
| = <description>
| = literal <description> literal
| = <description>=
| =
| = <>
| = literal
| = <description>
| = literal <description> literal
| = <description>=
| <> =
| <> = <>
| <> = literal
| <> = <description>
| <> = literal <description> literal
| <> = <description>=
| <> =
| <> = <>
| <> = literal
| <> = <description>
| <> = literal <description> literal
| <> = <description>=
| literal =
| literal = <>
| literal = literal
| literal = <description>
| literal = literal <description> literal
| literal = <description>=
| literal =
| literal = <>
| literal = literal
| literal = <description>
| literal = literal <description> literal
| literal = <description>=
| <description> =
| <description> = <>
| <description> = literal
| <description> = <description>
| <description> = literal <description> literal
| <description> = <description>=
| <description> =
| <description> = <>
| <description> = literal
| <description> = <description>
| <description> = literal <description> literal
| <description> = <description>=
| literal <description> literal =
| literal <description> literal = <>
| literal <description> literal = literal
| literal <description> literal = <description>
| literal <description> literal = literal <description> literal
| literal <description> literal = <description>=
| literal <description> literal =
| literal <description> literal = <>
| literal <description> literal = literal
| literal <description> literal = <description>
| literal <description> literal = literal <description> literal
| literal <description> literal = <description>=
}}