What is the difference between null and undefined

Below are the main differences between null and undefined,

| Null | Undefined |

| ----------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------- |

| It is an assignment value which indicates that variable points to no object. | It is not an assignment value where a variable has been declared but has not yet been assigned a value. |

| Type of null is object | Type of undefined is undefined |

| The null value is a primitive value that represents the null, empty, or non-existent reference. | The undefined value is a primitive value used when a variable has not been assigned a value. |

| Indicates the absence of a value for a variable | Indicates absence of variable itself |

| Converted to zero (0) while performing primitive operations | Converted to NaN while performing primitive operations |