isNull
Table of Contents
Overview
The isNull function takes an expression as an argument, and returns true if it is a null value. Otherwise, it returns false.
Note: This function is not supported for form objects.
Return Type
- BOOLEAN
Syntax
For all services except Zoho Creator,
<variable> = <expression>.isNull();
For all services,
<variable> = isNull(<expression>);
where,
| Parameter | Data type | Description |
| <variable> | BOOLEAN | Variable which will contain the returned boolean value. |
| <expression> | ANY DATA TYPE | Variable which will hold the expression awaiting null validation. |
Examples
info isNull (""); //returns true info isNull (null); //returns true info " ".isNull(); //returns false