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== Parameters ==
 
== Parameters ==
 
* '''C''' - A conditional statement that determines whether this identifier returns the $true or $false conditional.
 
* '''C''' - A conditional statement that determines whether this identifier returns the $true or $false conditional.
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* '''T''' - The string returned and/or identifier evaluated/executed if the C statement is $true
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* '''T''' - The string returned and/or identifier executed if the C statement is $true
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* '''F''' - Optional string returned and/or identifier evaluated/executed if the C statement is $false
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* '''F''' - Optional string returned and/or identifier executed if the C statement is $false
  
 
Note: If F parameter is not used, $iif returns $null if the C statement is $false<br />
 
Note: If F parameter is not used, $iif returns $null if the C statement is $false<br />
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Note: If C evaluates to $false or $null or 0 (including 000 or 0.00), it is $false. $true or non-zero or text strings are $true<br />
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Note: If C evaluates to $false or $null or 0 (including 000 or 0.00), it is $false, $true or non-zero or text strings are $true
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Note: If both T and F conditions contain identifier calls, the T condition's identifier/alias is called/evaluated only if C evaluates as $true, and the F condition's alias is called only if C evaluates as $false
 
 
== Properties ==
 
== Properties ==
 
None
 
None
  
 
== Example ==
 
== Example ==
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<source lang="mIRC">
 
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//echo -a My IP address $ip is an $iif( $calc($right($ip,1) % 2),odd,even) number
 
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</source>
 
 
<source lang="mIRC">
 
<source lang="mIRC">
 
//echo -a $iif(0,$custom1(true1),$custom2(false2)) / $v1 $v2
 
//echo -a $iif(0,$custom1(true1),$custom2(false2)) / $v1 $v2
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= calls the custom2 identifier and returns any string returned by it. $v1 is filled with the 1st term of the C condition.
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Calls the custom2 identifier and returns any string returned by it.
 
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$v1 is filled with the 1st term of the C condition. Because the conditional was $false, the $custom1 alias in the T branch is not called.
 
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//echo -a $iif(2 > 1,$custom1(true1),$custom2(false2)) / $v1 $v2
 
//echo -a $iif(2 > 1,$custom1(true1),$custom2(false2)) / $v1 $v2
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= calls the custom1 identifier and returns any string returned by it. $v1 is filled with 2 (the 1st term of the C condition) and $v2 is filled with 1 (the 2nd term of C).
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Calls the custom1 identifier and returns any string returned by it.
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//echo -a echo -a today: $iif($asctime($ctime,ddd) isin MonTueWedThuSat,Weekday,Weekend)
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$v1 is filled with 2 (the 1st term of the C condition) and $v2 is filled with 1 (the 2nd term of C).
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//echo -a echo -a today: $iif($asctime($ctime,ddd) isin MonTueWedThuSat,Weekday)
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//echo -a today: $iif($asctime($ctime,ddd) isin MonTueWedThuFri,Weekday,Weekend)
 
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//echo -a today: $iif($asctime($ctime,ddd) isin MonTueWedThuFri,Weekday)
 
 
   1st of the pair returns either Weekday or Weekend
 
   1st of the pair returns either Weekday or Weekend
 
   2nd of the pair returns either Weekday or $null because of the missing F parameter.
 
   2nd of the pair returns either Weekday or $null because of the missing F parameter.
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   $iif conditionals can be nested:
 
   $iif conditionals can be nested:
 
//echo -a Classes on the $iif($asctime($ctime,ddd) isin SatSun,Sat-Sun, $iif(T* iswm $asctime($ctime,ddd),Tue-Thur,Mon-Wed-Fri)) Schedule meet today
 
//echo -a Classes on the $iif($asctime($ctime,ddd) isin SatSun,Sat-Sun, $iif(T* iswm $asctime($ctime,ddd),Tue-Thur,Mon-Wed-Fri)) Schedule meet today
 
</source>
 
</source>
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Note: see the {{mIRC|msl_injection}} page for explanation/examples of how malformed $iif syntax can trick users into executing code from the editbox. This next example causes you to perform the /QUIT command if you remove the 'echo -a' from it:
 
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<source lang="mIRC">
 
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//echo -a $iif(($regsubex(dim[int:x];for[x=0:20:3]x*TAN-1<<DEG[]<<SQ[],/[^A1NT]/g,)) echo -a $base($v1, 34, 35) I accidentally math, I math right! )
 
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</source>
 
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Note: $iif is a relatively slow identifier, and in some situations it can benchmark faster to replace it with a /set and an /if command pair.
 
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<source lang="mIRC">
 
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//var %a $iif($rand(0,1),True,False)
 
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vs
 
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var %a False
 
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if ($rand(0,1)) var %a True
 
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</source>
 
−
 
 
== Compatibility ==
 
== Compatibility ==
 
{{mIRC compatibility|5.4}}
 
{{mIRC compatibility|5.4}}
 +
 
== See Also ==
 
== See Also ==
 
{{collist
 
{{collist
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* {{mIRC|$true}}
 
* {{mIRC|$true}}
 
* {{mIRC|$false}}
 
* {{mIRC|$false}}
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* {{mIRC|msl_injection}}
 
 
}}
 
}}
 
[[Category:mIRC identifiers|$didtok]]
 
[[Category:mIRC identifiers|$didtok]]

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