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Examples
Example 1
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watchers2 = addElementIfNotExist(watchers, currentUser()); |
Adds currentUser to the watchers array if currentUser is not already present. The routine function returns a new array watchers2, so the initial array will not be modified.
Example 2
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watchers = addElementIfNotExist(watchers, currentUser()); |
The initial array will be modified as a result of the = operator and NOT of the routine function call.
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- If arrayName is not defined as an array, the routine function returns error.
- If elem is not the same type as declared in the array definition, the routine function returns error.
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See also
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