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36 lines
1.3 KiB
Plaintext
36 lines
1.3 KiB
Plaintext
'''Parenthesis''' are used to enclose [[SUB]] and [[FUNCTION]] parameters or to set the operation order in [[Mathematical Operations]].
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''Usage:'' COLOR 14: PRINT [[TAB]](30); "Hello World"
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{{OutputStart}}
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{{text|Hello World|yellow}}
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{{OutputEnd}}
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* [[SUB]] parameters MUST be enclosed in parenthesis when the [[CALL]] statement is used. Do '''not''' use parenthesis without CALL.
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* Parenthesis can be used in calculations to determine the order in which math operations are performed when the normal order would not work correctly. Normal operation order is: '''1)''' exponential, '''2)''' multiplication or division '''3)''' addition or subtraction.
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* Parenthesis can also denote the array index or the dimension size(s) in a [[DIM]] statement.
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* Instead of [[BYVAL]], use extra parenthesis around sub-procedure call parameters to pass them by value instead of by reference.
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* Extra pairs of brackets have no effect on the code! If one is missing the IDE should tell you.
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''Example:'' Using too many brackets does not harm the code execution as long as they are paired up.
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{{CodeStart}} '' ''
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nmb$ = {{Cl|STR$}}(100)
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nmb$ = {{Cl|LTRIM$}}((({{Cl|RTRIM$}}(nmb$)))) 'extra bracket pairs do not affect the code
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{{Cl|PRINT}} nmb$ '' ''
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{{CodeEnd}}
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''See also:''
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* [[DIM]], DECLARE
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* [[SUB]], [[FUNCTION]]
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* [[Arrays]]
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