When we analyze the Context vs Scope then we find that both are not same. I met lots of developers and noticed many of them confuse with these and be frank they mixed both to each other.
Both null and undefined can be regarded as a special value that indicates "no value".
The null is a language keyword (in fact, it is a primitive ) which is used to indicate the expected lack of value. On the other hand, undefined is a predefined global variable that has a deeper meaning and is used to indicate an error-like, unexpected lack of value.
Method chaining is a technique that can be used to simplify code in scenarios that involve calling multiple functions on the same object consecutively. This is an example of how you can use method chaining
when using jQuery.
Bitwise operators treat their operands as a sequence of 32 bits (zeroes and ones), rather than as decimal, hexadecimal, or octal