throw: Difference between revisions

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m (Text replacement - "{{Command " to "{{RV|type=command ")
m (Text replacement - " *\| *PARAMETER[0-9]{1,3} *= * " to " ")
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|s2= if (condition) [[throw]] exception {{Since|arma3|1.53.133045|y}}
|s2= if (condition) [[throw]] exception {{Since|arma3|1.53.133045|y}}


|p21= if (condition): [[If Type]]  - if (condition) returns [[true]], "exception" is thrown |PARAMETER21=
|p21= if (condition): [[If Type]]  - if (condition) returns [[true]], "exception" is thrown
|p22= exception: [[Anything]] - value that will be put into ''_exception'' variable inside [[catch]] block|PARAMETER22=
|p22= exception: [[Anything]] - value that will be put into ''_exception'' variable inside [[catch]] block


|r2= [[Nothing]]
|r2= [[Nothing]]

Revision as of 19:10, 29 January 2021

Hover & click on the images for description

Description

Description:
Description needed
Groups:
Program Flow

Syntax

Syntax:
throw expression
Parameters:
expression: Anything
Return Value:
Nothing

Alternative Syntax

Syntax:
if (condition) throw exception Template:Since
Parameters:
if (condition): If Type - if (condition) returns true, "exception" is thrown
exception: Anything - value that will be put into _exception variable inside catch block
Return Value:
Nothing

Examples

Example 1:
try {throw "invalid argument"} catch {hint str _exception};
Example 2:
Template:Since: 123 try {if (_this != 123) throw "invalid argument"} catch {hint str _exception};
Example 3:
The correct usage of shorthand alt syntax: try { if (a > b) throw "Error: some error"; // OK // The command argument is static } catch { hint str _exception; }; try { _someFunc = { ..... }; if (a > b) throw (call _someFunc); // NOT OK // The command argument is dynamic // _someFunc is called first to get the value regardless of (a > b) outcome } catch { hint str _exception; }; try { _someFunc = { ..... }; if (a > b) then {throw (call _someFunc)}; /// OK // The command argument is dynamic // _someFunc is only called when (a > b) is true } catch { hint str _exception; };

Additional Information

See also:
Exception handlingtrycatch

Notes

Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note