Explain the difference between null and undefined in JavaScript.
Explain the difference between null and undefined in JavaScript.
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14-Apr-2023
Updated on 17-Apr-2023
Aryan Kumar
17-Apr-2023In JavaScript, null and undefined are both values that represent the absence of something, but they have different meanings.
undefined is a value that is assigned to a variable that has been declared but has not been assigned a value. It is also returned when accessing an object property that does not exist or when a function does not return a value.
null, on the other hand, is a value that is explicitly assigned to a variable to represent the absence of an object. It is often used to indicate that a variable should have no value