a == b: Difference between revisions

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{{Command|Comments=
{{Command|Comments=
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| ofp |Game name=
| ofp |Game name=
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|gr1= Math |GROUP1=
|gr1= Math |GROUP1=
|gr2= Variables |GROUP2=
|gr2= Variables |GROUP2=
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| Check if argument <tt>a</tt> is equal to argument <tt>b</tt>.
| Check if argument <tt>a</tt> is equal to argument <tt>b</tt>.
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{{Informative|Please note that [[String]] comparison is '''case-insensitive'''.<br>
{{Informative|Please note that [[String]] comparison is '''case-insensitive'''.<br>
If you need case-sensitive comparison, use [[isEqualTo]].}} |Description=
If you need case-sensitive comparison, use [[isEqualTo]].}} |Description=
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| a '''{{=}}{{=}}''' b |Syntax=
| a '''{{=}}{{=}}''' b |Syntax=
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| [[Boolean]] |Return value=
| [[Boolean]] |Return value=
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|x1 = <code>[[if]] ([[player]] == [[leader]] [[group]] [[player]]) [[then]] {
|x1 = <code>[[if]] ([[player]] == [[leader]] [[group]] [[player]]) [[then]] {

Revision as of 00:10, 17 January 2021

Hover & click on the images for description

Description

Description:
Check if argument a is equal to argument b. Both arguments need to be of the same type.
Please note that String comparison is case-insensitive.
If you need case-sensitive comparison, use isEqualTo.
Groups:
MathVariables

Syntax

Syntax:
a == b
Parameters:
a: Number, String, Group, Side, Object, Structured Text, Config, Display, Control, Location, Diary Record (since Arma 3 v1.99.146508), Namespace (since Arma 3 v1.99.146509), Boolean (since Arma 3 v1.99.146526)
b: Number, String, Group, Side, Object, Structured Text, Config, Display, Control, Location, Diary Record (since Arma 3 v1.99.146508), Namespace (since Arma 3 v1.99.146509), Boolean (since Arma 3 v1.99.146526)
Return Value:
Boolean

Examples

Example 1:
if (player == leader group player) then { hint "You are the leader of your group."; } else { hint "Someone else is the boss"; };
Example 2:
"MyRabbit" == "MYRABBIT"; // returns true
Example 3:
Since Arma 3 v1.99.146526if (alive _unit1 == alive _unit2) then {hint "Both units are either dead or both alive"};

Additional Information

See also:
!=OperatorsisEqualTo

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

Notes

Posted on Apr 15, 2014 - 15:34
ffur2007slx2_5
For script comparison we need to detect whether scripts are running in advance, then compose both into string: if (scriptDone _var0) then [{false},{(str _var0) == (str _var1)}]; It is recommended to use isEqualTo for all types comparison, which is more functional and as fast as operator. For multiple comparisons: fnc_areEqual = { private ["_b", "_var1", "_var2"]; _b = true; for [{ _i = 1 }, { _i < (count _this) && _b }, { _i=_i + 1 }] do { _var1 = _this select (_i-1); _var2 = _this select _i; if (!(_var1 isEqualTo _var2)) then { _b = false; }; }; _b }; ["A","a","a"] call fnc_areEqual; // false And we can use such workaround instead of using BIS_fnc_arrayCompare or BIS_fnc_areEqual

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