Template:Number of defined parameters

{{#expr: +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} +{{#if:|1|0}} }}

Note

For use with {{Start tab}} and {{End tab}}.