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Making Decisions: JavaScript: Uncharted

Courses JavaScriptMaking Decisions

Making Decisions

Turn comparisons into clear choices with boolean logic, if/else branches, and ordered decision ladders.

JavaScript
Unit 4 of 20
20 lessons
171 min
420 XP

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Lessons

20 total

1If It RainsRecognize a daily decision as one condition with a yes path and a no path.InteractiveConcept7 min20 XPOpen
2Questions with Yes/No AnswersWrite comparisons that produce and print boolean values.CodeConcept7 min20 XPOpen
3Your First ifUse an if statement to run a free-delivery message when a threshold is met.CodeConcept8 min20 XPOpen
4Otherwise: elseUse if and else to produce exactly one message for either boolean outcome.CodeConcept8 min20 XPOpen
5Triple EqualsDistinguish strict equality from assignment and other comparisons.InteractiveConcept7 min20 XPOpen
6Ladders of ChoicesBuild an else-if chain that selects one ticket price from an age.CodeConcept9 min20 XPOpen
7Both Must HoldCombine two requirements with the logical AND operator.CodeConcept8 min20 XPOpen
8Either Will DoUse logical OR to select a default when a preferred value is empty.CodeConcept7 min20 XPOpen
9Flip It with NotInvert a boolean with logical NOT to detect a closed shop.CodeConcept7 min20 XPOpen
10Courier Reads the LabelUse fixed starter data to choose a left or right turn in a courier program.Code worldConcept10 min20 XPOpen
11Most Specific FirstOrder an else-if ladder so each discount tier remains reachable.InteractiveConcept8 min20 XPOpen
12Flat Beats NestedRefactor a nested decision into a flat else-if ladder without changing its output.CodeConcept9 min20 XPOpen
13Which Branch Runs?Predict the first matching branch for three inputs in one ordered ladder.InteractiveConcept8 min20 XPOpen
14Truthy SurprisesObserve how an empty string and zero behave directly in conditions.CodeConcept8 min20 XPOpen
15Movie Night PickerApply an ordered rule chain to select one movie genre.CodePractice10 min20 XPOpen
16Shipping RulesOrder weight, distance, and speed rules into one shipping-price ladder.CodePractice11 min20 XPOpen
17switch When It ShinesUse switch to map one exact plan name to its data allowance.CodeConcept8 min20 XPOpen
18Why Order MattersExplain why a broad condition can hide a more specific later branch.InteractiveConcept9 min20 XPOpen
19Door Code GateUse an exact code match and remaining attempts to choose a polite gate message.CodePractice10 min20 XPOpen
20Decisions Mastery CheckCombine comparisons, boolean logic, if/else, and ordered branches in one shipping decision.CodeMastery check12 min40 XPOpen

Numbers and Text Loops