Nowadays JavaScript has three different keywords ... As we already discussed the use of let and const allows us to define variables that live within the block scope. Next, we’ll build very ...

Here are more tips to keep in mind when naming your variables: Unlike some other programming languages, JavaScript does not require you to explicitly define the type of variable you want to create.

This chapter looks back at the two steps in the interpretation of JavaScript (simplified): lexical‐time and run‐time. It details this double mechanism: declaration of the variables, initialization to ...