05-syntax-and-semicolons

Lesson 05: Syntax: statements & semicolons

How JS is structured: statements, expressions, blocks.

What you'll learn

• a statement performs an action; an expression produces a value
• semicolons end statements — JS inserts them automatically (ASI), but be careful
• code blocks are wrapped in { }
• ASI pitfall: a line starting with ( or [ can merge with the line above

Example

See examples/.

Exercise

Find an example where missing a semicolon changes behavior.