or
| Syntax |
expression1 or expression2 expression1 || expression2
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| Action |
The logical disjunction (boolean "or") operator, yields the boolean value true if either expression1 or expression2 evaluates to true, false otherwise.
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| Examples |
file.exists ("myFile") or !file.exists ("myFile") » true
This expression always evaluates to true, because it is impossible for both expressions to be false at the same time.
This expression evaluates to true if "myFile" is a folder, or is not a text file. |
| Notes |
There is no difference between the two forms, || and or. UserTalk employs "short-circuit" evaluation of boolean expressions. That means that if expression1 of an or operation evaluates to true, expression2 will not be evaluated, since it can already be determined that the result of the operation will be true. So in example #2 above, the call to file.type will never be made if file.isFolder returns true.
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| See Also |
and
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