null
Null all of the things! This package was originally created as a joke, but hey now it actually does something non-trivial.
If you ever use null
for logic tests, you can try using a Symbol
instead via the NullRef library provided by this package.
This package provides for a NULL
constant that is a Symbol from the Global Symbol Registry, as well as convenience methods for testing, casting, and comparing values.
Usage
Require and reference what you need:
const nullref = require('null'); // note that the variable name should not be null, here we use nullref
const nulltest = nullref.lib; // load the full library of convenience features
const isNull = nullref.isNull // or just load the main ones you want (checks for null or NULL)
const isNullRef = nullref.isNullRef // checks for NULL only
const NULL = nullref(); // NULL symbol instance (singleton);
Consume and use as needed.
let x = null;
//returns true is x is null or NULL
if( nulltest.is(x) ) //do something
if( isNull(x) ) // same as above
//cast a variable to NULL if it is null or NULL
if( NULL === nulltest.to(x) ) // do something