"ഫലകം:If empty/doc" എന്ന താളിന്റെ പതിപ്പുകൾ തമ്മിലുള്ള വ്യത്യാസം

{{Template redirectsredirect |Ifempty |First nonempty |Use first nonempty}}

Parameters used with {{tlf|if empty}} must be [[Pipe (Unix)|pipe]]d&nbsp;– i.e. include the [[Vertical bar|vertical bar (pipe) symbol]] {{nowrap|("{{thinspthin space}}&#124;{{thinspthin space}}")}} as a trailing character&nbsp;– so that empty or undefined parameters aren't treated as text and returned incorrectly. Hence, for example, <code><nowiki>{{{logo|}}}</nowiki></code>, <code><nowiki>{{{image|}}}</nowiki></code> and <code><nowiki>{{{picture|}}}</nowiki></code> rather than {{param|logo}}, {{param|image}} and {{param|picture}} in the above examples.

| {{tctlc|if empty}} | {{if empty}} | Returns an empty string.

| {{tctlc|if empty|one}} | {{if empty|one}} | Returns the first parameter that is defined and not empty.

| {{tctlc|if empty|one|two}} | {{if empty|one|two}} |

| {{tctlc|if empty|one|two|three|four}} | {{if empty|one|two|three|four}} |

| {{tctlc|if empty||two}} | {{if empty||two}} | The first parameter is empty/undefined, so is passed over.

| {{tctlc|if empty||two|three|four}} | {{if empty||two|three|four}} |

| {{tctlc|if empty||two||four}} | {{if empty||two||four}} |

| {{tctlc|if empty|}} | {{if empty|}} | The only parameter is empty or undefined, so returns an empty string.

| {{tctlc|if empty||||}} | {{if empty||||}} | Returns an empty string.