How do I check for null or undefined values in jQuery

In jQuery, you can check for null or undefined values using the traditional JavaScript methods. Commonly, you would use the `==` operator for loose equality, or the `===` operator for strict equality. Here are some examples:


        // Example of checking for null or undefined in jQuery
        var value;

        if (value == null) {
            console.log('value is either null or undefined');
        }

        // Another way to check using strict equality
        if (typeof value === 'undefined') {
            console.log('value is undefined');
        }