What is expression, literal and initialization in JavaScript??

Question

JavaScript

Hey! I don't understand what is expression, literal and initialization. These words are used everywhere, but I just can't figure them out. String literal, numeric, boolean. Object initializers... I don't understand anything. Explain, please, on the fingers, what it all means. In my understanding, an expression is some kind of action, something that can be calculated. For example, a+b is an expression. A literal is some kind of value. Initialization is creation.

Answer 1

Simply put, I would explain it like this:

Answer 2

1) Expression - what is returned.
2) Literal - any value specified explicitly. For example, the number 120. You can write it as . That is, this is a simplified form of writing a value. 3) Initialization - creation. Before we created the variable, it did not exist, but we initialized it and it became. Something like this Number(120)