a == b: Difference between revisions

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<dd class="notedate">Posted on Apr 15, 2014 - 15:34
<dd class="notedate">Posted on Apr 15, 2014 - 15:34
<dt class="note">'''[[User:ffur2007slx2_5|ffur2007slx2_5]]'''<dd class="note">
<dt class="note">'''[[User:ffur2007slx2_5|ffur2007slx2_5]]'''<dd class="note">
In ArmA3 ver 1.16 for case sensitive comparison, array comparison and boolean comparison we can use [[switch do]]. e.g.
(A3 1.16) for case sensitive comparison, array comparison and boolean comparison we can use [[switch do]]. e.g.
<code>
<code>
switch (_var0) do {
[[switch]] (_var0) [[do]] {
         case (_var1) : {true};
         [[case]] (_var1) : {[[true]]};
         default {false};
         [[default]] {[[false]]};
       };
       };
</code>
</code>
For script comparison we need to detect whether scripts are running in advance, then compose both into string:
For script comparison we need to detect whether scripts are running in advance, then compose both into string:
<code> if(scriptdone _var0) then [{false},{(str _var0) == (str _var1)}];</code>
<code> [[if]] ([[scriptDone]] _var0) [[then]] [{[[false]]},{([[str]] _var0) == ([[str]] _var1)}];</code>
It is recommended to use [[isEqualTo]] for all types comparison, which is more functional and as fast as operator.
It is recommended to use [[isEqualTo]] for all types comparison, which is more functional and as fast as operator.
For multiple comparisons:
For multiple comparisons:
<code>
<code>
Fnc_areEqual = {
fnc_areEqual = {
Private ["_b","_var1","_var2"];
[[private]] ["_b","_var1","_var2"];
_b = true;
_b = [[true]];
For [{_i=1},{_i < (count _this) && _b},{_i=_i+1}] do {
[[for]] [{_i=1},{_i < ([[count]] _this) && _b},{_i=_i+1}] [[do]] {
       _var1 = _this select (_i-1);
       _var1 = _this [[select]] (_i-1);
  _var2 = _this select _i;
      _var2 = _this [[select]] _i;
       If (!(_var1 isEqualTo _var2)) then {_b = false;};
       [[if]] (!(_var1 [[isEqualTo]] _var2)) [[then]] {_b = [[false]];};
};
};
_b
_b
};
};
["A","a","a"] call fnc_areEqual; // false
["A","a","a"] [[call]] fnc_areEqual; // false
</code>
</code>
And we can use such workaround instead of using [[BIS_fnc_arrayCompare]] or [[BIS_fnc_areEqual]]
And we can use such workaround instead of using [[BIS_fnc_arrayCompare]] or [[BIS_fnc_areEqual]]

Revision as of 09:43, 27 August 2014

Logo A0.png1.00
Hover & click on the images for description

Description

Description:
Check if one value is equal to another. Both values need to be of the same type.
Groups:
Uncategorised

Syntax

Syntax:
valuea == valueb
Parameters:
valuea: Number, Group, Side, String, Object, Structured Text, Config, Display or Control; since VBS2 1.24: Location
valueb: Number, Group, Side, String, Object, Structured Text, Config, Display or Control; since VBS2 1.24: Location
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:
? name player == "Billy" : hint "Hello Billy, how are you?"

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 Feb 5, 2007 - 10:38
Ceeeb
In OFP v1.96, comparison of strings is not case sensitive. Example : "STRINGtext" == "stringTEXT" returns true.
Posted on Apr 15, 2014 - 15:34
ffur2007slx2_5
(A3 1.16) for case sensitive comparison, array comparison and boolean comparison we can use switch do. e.g. switch (_var0) do { case (_var1) : {true}; default {false}; }; 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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