exitWith: Difference between revisions

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m (Text replacement - "<code>([^<]*)\[\[([a-zA-Z][a-zA-Z0-9_]+)\]\]([^<]*) *<\/code>" to "<code>$1$2$3</code>")
m (Text replacement - "<code>([^<]*)\[\[([a-zA-Z][a-zA-Z0-9_]+)\]\]([^<]*) *<\/code>" to "<code>$1$2$3</code>")
Line 32: Line 32:
private _condition = true;
private _condition = true;


if (_condition) [[then]]
if (_condition) then
{
{
[[if]] ([[true]]) [[exitWith]]
[[if]] ([[true]]) [[exitWith]]
Line 52: Line 52:
|x2= <code>for "_j" from 1 to 10 do
|x2= <code>for "_j" from 1 to 10 do
{
{
[[systemChat]] [[format]] ["%1", _j];
systemChat [[format]] ["%1", _j];


// the [[for]] loop will cease and code execution will continue after the end of the loop
// the [[for]] loop will cease and code execution will continue after the end of the loop
Line 65: Line 65:


<code>onEachFrame {
<code>onEachFrame {
if (!alive player) [[exitWith]]
if (!alive player) exitWith
{
{
[[onEachFrame]] {};
[[onEachFrame]] {};
Line 74: Line 74:
waitUntil  
waitUntil  
{
{
if (time > _time) [[exitWith]] { [[true]] };
if (time > _time) exitWith { [[true]] };
[[false]]
[[false]]
};</code>
};</code>
Line 80: Line 80:
|x4= <code>while { true } do
|x4= <code>while { true } do
{
{
if ([[alive]] [[player]]) [[then]]
if (alive [[player]]) [[then]]
{
{
[[if]] ([[time]] > 300) [[exitWith]] // '''wrong''' - it will only leave the "if alive player" scope, remaining in the "while true" loop forever
[[if]] ([[time]] > 300) [[exitWith]] // '''wrong''' - it will only leave the "if alive player" scope, remaining in the "while true" loop forever
Line 93: Line 93:
hint "reached";
hint "reached";
};
};
{{cc|else { [[hint]] "not reached" }; // '''wrong''' - using [[else]] does not work and makes no sense here}}</code>
{{cc|else { hint "not reached" }; // '''wrong''' - using [[else]] does not work and makes no sense here}}</code>
<code>if (_condition) exitWith
<code>if (_condition) exitWith
{
{

Revision as of 13:05, 12 May 2022

Hover & click on the images for description

Description

Description:
Exits the current code scope. Often used for exiting do, for, count, forEach or the whole script.
See Variables - Local Variables Scope for more information.
Groups:
Program Flow

Syntax

Syntax:
ifType exitWith code
Parameters:
ifType: If Type
code: Code
Return Value:
Anything

Examples

Example 1:
systemChat "start"; private _condition = true; if (_condition) then { if (true) exitWith { systemChat "exiting if _condition scope"; }; systemChat "never shown"; }; systemChat "exiting #1 worked"; if (true) exitWith { systemChat "exiting the main scope = leaving the whole script"; }; systemChat "never shown - the script has already ended";
Example 2:
for "_j" from 1 to 10 do { systemChat format ["%1", _j]; // the for loop will cease and code execution will continue after the end of the loop if (_j == 5) exitWith { systemChat "5 is enough"; }; }; systemChat "Complete";
Example 3:
Most loops will also terminate when their scope is exited. To exit and terminate scopes which are called every frame such as onEachFrame and waitUntil use the following examples: onEachFrame { if (!alive player) exitWith { onEachFrame {}; }; }; _time = time + 10; waitUntil { if (time > _time) exitWith { true }; false };
Example 4:
while { true } do { if (alive player) then { if (time > 300) exitWith // wrong - it will only leave the "if alive player" scope, remaining in the "while true" loop forever { hint "exiting"; }; }; };
Example 5:
if (_condition) exitWith { hint "reached"; }; // else { hint "not reached" }; // wrong - using else does not work and makes no sense here if (_condition) exitWith { hint "reached"; }; hint "not reached"; // correct - if _condition is met, the scope has already been exited by now

Additional Information

See also:
scopeName breakOut breakTo else Control Structures then assert try catch throw

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
Posted on May 28, 2010 - 22:15
Roehre
Since Arma 2 uses Blocks in FSM as any ordinary Handle like while, for etc. in Scripts, ExitWith also only closes the Block in the FSM.
Posted on August 04, 2013 - 12:20
Killzone_Kid
The command will exit the current scope - no ifs no buts. If the current scope is a loop, it will exit the loop. If the current scope is the main body of a script, it will exit the script. For more understanding of scopes and exitWith have a look at this resource.
Posted on March 10, 2016 - 08:31 (UTC)
Killzone Kid
exitWith cannot be used in event handlers with override ability to simply exit with override value. The following is incorrect: // INCORRECT USAGE onMapSingleClick {if (!isServer) exitWith {true}}; The override value must be returned in the main scope of EH, but since it is exited with exitWith, it never happens. The correct way in this case would be: // CORRECT USAGE onMapSingleClick {call {if (!isServer) exitWith {true}}}; exitWith will exit current call scope only and override value therefore will appear in the main scope of the EH, right where we want it.