Often, you want to ensure a variable is neither null nor undefined . Using the loose inequality operator ( != ) covers both at once. javascript
if (myObject != null) { // Runs if myObject is neither null nor undefined } Use code with caution. Copied to clipboard 3. Validating it is Truly an Object Check If Object Is Not Null In Javascript
In JavaScript, typeof null famously returns "object" , which is a historical bug. To verify that a variable is a non-null object (and not an array or other primitive), use a combined check: javascript Often, you want to ensure a variable is