But function expressions, on the other hand, should always end with a semicolon. 💡Tip: In JavaScript, functions can be stored in variables, passed into other functions as arguments, passed out of ...

explains the difference between these two keywords in JavaScript. The difference lies in scope. The variables declared with var are scoped to the function block while those declared with let are ...

In JavaScript, though, the same code is perfectly fine: This is because JavaScript scopes your variables to functions and not to if-blocks. But, we can achieve block-like scope through the use of ...