Statements, semicolons and code blocks.
✍️ 3 exercises + code challenge in this lessonA JavaScript program is a list of statements that the browser executes one by one, top to bottom.
;. They are optional in most cases but recommended.{ }.let, if, for, function and return start statements.Mastering JavaScript Statements helps you write clean and reliable JavaScript code. Follow standard conventions, test edge cases, and keep logic simple. Try running the code example below and complete the exercises to build confidence.
<pre id="out"></pre>
<script>
const log = (...a) => document.getElementById("out").textContent += a.join(" ") + "\n";
let a = 5;
let b = 6;
let c = a + b;
log("a + b =", c);
{
// A code block
let message = "Inside a block";
log(message);
}
</script>Check what you learned in “JavaScript Statements”.
End the statement correctly.
let total = 5 + 3
How are JavaScript statements executed?
Create a = 4 and b = 6 and log their product.
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