JavaScript uses the null value to represent a missing object. Use the strict equality operator ( === ) to check if a value is null . The typeof null returns ‘object’ , which is historical bug in JavaScript that may never be fixed.
Read moreHow do you check if an object is null in JS?
JavaScript uses the null value to represent a missing object. Use the strict equality operator ( === ) to check if a value is null . The typeof null returns ‘object’ , which is historical bug in JavaScript that may never be fixed.
Read moreHow do you check if JavaScript object is undefined?
In a JavaScript program, the correct way to check if an object property is undefined is to use the `typeof` operator .
Read moreHow do you check if JavaScript object is undefined?
In a JavaScript program, the correct way to check if an object property is undefined is to use the `typeof` operator .
Read moreHow do I check if an integer is null?
If you want an integer to be able to be null, you need to use Integer instead of int . @sharonHwk “person == null” should be the better option. If person is null, it won’t have a “equal” method, then “person. equals(null)” throws.
Read moreHow do you check for null?
How to Test for NULL Values?
Read moreHow do you check for null?
How to Test for NULL Values?
Read more