Function Updated 30 May 2026

`isNotNull(value)`

Checks if specified value is not null.

Parameters

valueanyrequired

The value to check.

Returns

True if value is not null, otherwise false.

Example

Mixed HTML (or any text file) with inline JavaScript between hash signs.

<p>
    Is value1 not null?
    #docly.isNotNull(value1) ? "Yes" : "No"#
</p>

<p>
    Is value2 not null?
    #docly.isNotNull(value2) ? "Yes" : "No"#
</p>

The template above produces this output:

<p>
    Is value1 not null?
    Yes
</p>

<p>
    Is value2 not null?
    No
</p>

Normal JavaScript, running in the browser or on the Docly™ server.

write(docly.isNotNull(null));
write("\n");
write(docly.isNotNull("hello"));
/* Expected output:
false
true
*/

The JavaScript above produces this output:

false
true

The data the example runs with:

{
    "value1" : "asdf",
    "value2" : null
}