JavaScript Definitions Worksheet: Getting Started (Modules 1–10)
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Date:
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Key terms
Write what each term means, in your own words.
1
console.log()
2
//
3
let
4
string
5
+
6
%
7
${}
8
typeof
9
Number()
Answer Key
JavaScript · Modules 1–10 · Student wording will vary for definitions
1console.log() — Prints a value or message to the browser or terminal console for debugging or output.
2// — Marks the rest of a line as a comment, which JavaScript ignores when running the code.
3let — Declares a variable whose value can be changed later.
4string — A data type that holds text, written inside quotes like "hello".
5+ — An operator that adds two numbers together.
6% — An operator that returns the remainder left over after dividing one number by another.
7${} — Syntax used inside backticks to embed a variable or expression directly into a string.
8typeof — An operator that returns a string naming the data type of a value.
9Number() — Converts a value, like a string, into a number data type.