BitWithBite
JavaScript Worksheet
⚡ Conditional Statements
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After this worksheet you can
Write if/else if/elseUse the ternary operatorUnderstand truthy/falsySwitch statements📚 Quick Recap
🎯 What you'll learn: How to make decisions with if/else, switch statements, ternary operator, truthy/falsy values, short-circuit evaluation, guard clauses, and build real-world condition-based programs.
🧠 Section A · Concept Check ● BEGINNER 4 × 1 = 4
1'else if' lets you:
2cond ? a : b is the:
3Which is falsy?
4switch compares with:
🧮 Section B · Problem Solving ● INTERMEDIATE 2 + 3×3 = 11
5if (x 18) checks adult (at least 18).
6Empty string '' is (truthy/falsy).
7Write if/else printing 'even' or 'odd' for n.
8Rewrite with ternary: pass = score>=50 ? 'Pass':'Fail'.
9List three falsy values.
🚀 Section C · Challenge ● CHALLENGE 5
10When is switch nicer than if/else?
💭 Reflection — the most useful thing I learned:
A ___/4 B ___/11 C ___/5 Total ___/20
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✂ answer key — fold or cut before handing out
1-B 2-B 3-B 4-B | 5 >= 6 falsy 7 = if(n % 2 === 0){...even}else{...odd} 8 = const pass = score >= 50 ? 'Pass' : 'Fail'; 9 = 0, '', null (also undefined, NaN, false) | 10 = Many exact-match cases on one value