How to check the given field is totally BLANK?

[srinivas1506]

Hello,

My requirement is as below,

if ( my_text_field_1 == BLANK){ 

my_text_field_2.rawValue = "Blank"

}

if( my_text_field_1 = null){

my_text_field_3.rawValue = "NULL"

}

1) Pls. let me know How can do Java script

for this BLANK? is it a single space like " " (single space)...........if so, if user enters 2 spaces or 3 or 4 spaces, wht happens in that case? still my code works? or will it not work bcz we put only one space? 

2) Pls. consolidated the above JavaScript in a best practice way

Thank you

[Srini_Dhulipall]

Try the following code.

//Trim the field's rawValue to check for the blankness.

if(my_text_field_3.rawValue.replace(/^\s+|\s+$/g,"") == "")

     my_text_field_3.rawValue = "Blank";

if(my_text_field_3.rawValue == null)

     my_text_field_3.rawValue = "Null";

Thanks

Srini

[srinivas1506]

Thank you.

Sorry i did not understood the 1st piece, pls. eloborate

//Trim the field's rawValue to check for the blankness.

if(my_text_field_3.rawValue.replace(/^\s+|\s+$/g,"") == "")

     my_text_field_3.rawValue = "Blank";

[Srini_Dhulipall]

The first section of the code will do a trim on the field's rawValue..

Then it checks for emptyness ("").

Based on your question you are not sure whether the user has entered a value in it/ one space/ two spaces/ three spaces etc..So if you trim the field value, then all the spaces will be removed and then you can check the field's rawValue.

Hope this helps.

Thanks

Srini

[srinivas1506]

1) So, jusy i need to COPY & PASTE the below code as is?

if(my_text_field_3.rawValue.replace(/^\s+|\s+$/g,"") == "")

2) Then, wht are these special characters at the end?

Thank you