Question

What happen when you write the JavaScript code
in mixed case?​

Answer 1

Answer:

You will experience several syntax errors

Explanation:

Since JavaScript treats upper and lower case letters differently there would be a lot of errors during the compilation of the program such as the functions night not work or the several may operators might not calculate values at all due to incorrect syntax

Due to this we come to a conclusion that JavaScript is a "Case Sensitive" programming language