Checks if a value is neither null nor undefined.
The value to check.
True if the value is defined (not null or undefined), false otherwise.
isDefined(42); // trueisDefined("hello"); // trueisDefined(null); // falseisDefined(undefined); // false Copy
isDefined(42); // trueisDefined("hello"); // trueisDefined(null); // falseisDefined(undefined); // false
Checks if a value is neither null nor undefined.