How to validate blank space ?

Question

Hi All
I have a textfield i am showing alert if textfield is empty by using isNull and undefined way but how check if user give empty space ?
Thanks in advance !!!
Regards,
Ganesh

Answer 1

This is how to remove all blank spaces in a string:
Create a function in an object script, e.g.:
Script Object Name: myObject
Method Name : function trim(string)
function trim(str){
     return str.replace(/^\s+|\s+$/g, '');
//this function above return the string by replacing blank space by nothing (empty string or null string)
//it only replace if the field is empty, if there is no chars inside
//Show the output value after calling the method
TextField21.rawValue = myObject.trim(TextField21.rawValue);
//Here is a lil proto to see if it works
if (TextField21.rawValue == null){
          xfa.host.messageBox("Null");
} else{
          xfa.host.messageBox("Blank");