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Generic errors show up in the upper part of the screen, as demonstrated below.
To do this, all you have to do is return the error message. Like this:
| Code Block |
|---|
string fruit = getElement(argv, 1);
if( isNull(fruit) ){
return "What? You don't like fruits?";
} |
Field Validation Errors
If you have multiple input fields on the screen, it would be nice to validate them all at once and show errors for each one.
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To do this, you will have to return an array containing pairs of label and error.
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