10 Things in JavaScript

1. Primitive Values

primitive values examples
reference values

2. Typeof()

3. Coding Style

standard coding style

4. Comments

comment in JavaScript
single-line comment
multi-lines comment

5. Arrow Function

arrow function

6. Spread Operator

spread operator in JavaScript

7. Block Scope

8. Default Parameter

default parameter

9. map()

map in JavaScript

10. Destructuring

destructuring array & object

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