syntaxError: function statement requires a name error.

Question

I have this document JavaScript that is suppose to work in conjunction with a fields custom validation script, which is to prevent a user from leaving a field blank. It does not seem to work. In the Console I get:SyntaxError: function statement requires a name1:Doc:Exec Any ideas would be much appriciated. Document JavaScript

function isFieldBlank(fieldName) {
console.println("Running isFieldBlank on: " + fieldName);
var field = this.getField(fieldName);

if (!field) {
console.println("Field not found: " + fieldName);
return true;
}

var val = field.value;
if (typeof val === "string" && val.trim() === "") {
console.println(fieldName + " is blank.");
app.alert("This field cannot be left blank.");
field.setFocus();
return true;
}

console.println(fieldName + " has value: " + val);
return false;
}

Custom Validation Script

event.rc = !isFieldBlank(event.target.name);

PDF Automation Station · Accepted Answer

My script will work, with a slight modification, if the field is formatted as a number:if(event.value<0){app.alert("Field must be zero or greater.",1);event.target.setFocus();}

Thom Parker · Answer

So there are a couple of problems with this script, neither of which is a syntax error. Your syntax error is somewhere else.

The main error is this line:

var field = this.getField(fieldName);

The field object is already available in "event.target". But this doesn't help you either because the value of the field is not the value entered by the user, but the previous value. The validate script runs before the new entered value is committed to the field value.

To get the newly entered value use "event.value".

So, there is no need to pass the field name into the scirpt.

But the second problem is that your script seems to be intended for a form level validation. You see, the validation script is only run when the user deliberately enters data into the field. So if they leave the field blank, the script will never be run.

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