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Code Reference - if-else
The if statement is probably one of the very first statements you will be looking for
since it's so commonly used in any programming language.
Visual Foxpro:
Syntax:
IF lExpression [THEN]
Commands
[ELSE
Commands]
ENDIF
Sample 1
IF var < 5
var = var + 1
ENDIF
Sample 2
IF var < 5
var = var + 1
ELSE
var = var - 1
ENDIF
Servoy:
Syntax:
if (lExpression)
{
Commands;
}
[else
{
Commands;
}]
Sample 1
if (var < 5)
{
var = var + 1;
}
Sample 2
if (var < 5)
{
var = var + 1;
}
else
{
var = var - 1;
}
Sample 3
if (x < y)
return -1;
else if (x == y)
return 0;
else
return 1;
Conclusion
Not that different right? Except for maybe the last sample but that is actually a nested if.
You can leave out the braces but then you can use only one command. I would recommend always
using braces for sake of clarity. Otherwise when you add a command you might forget the braces.
Also don't forget that comparing values should always be done with == and not with
the single equal sign. Why? Because the code below assigns a 3 to the variable x ...
if (x = 3)
{
return
}
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