JavaScript Definitions Worksheet: Control Flow (Modules 11–20)
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Date:
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Key terms
Write what each term means, in your own words.
1
===
2
&&
3
Falsy
4
if
5
else if
6
else
7
?:
8
switch
9
while
10
for
Answer Key
JavaScript · Modules 11–20 · Student wording will vary for definitions
1=== — Checks if two values are equal in both value and type, returning true or false.
2&& — A logical operator that returns true only if both conditions on either side are true.
3Falsy — A value that JavaScript treats as false in a boolean context, such as 0, "", null, undefined, or NaN.
4if — Runs a block of code only when the condition inside its parentheses is true.
5else if — Checks another condition only when the previous if or else if condition was false.
6else — Runs a block of code when every earlier if or else if condition was false.
7?: — A shorthand operator that returns one value if a condition is true and another if false, without needing if/else.
8switch — Compares a value against multiple case labels and runs the code block for the matching case.
9while — Repeats a block of code as long as its condition inside parentheses stays true.
10for — Repeats a block of code a set number of times, using an initializer, condition, and update expression.