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n8n Automation Worksheet
⚙️ Working with Data and JSON
SCORE___ / 20
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After this worksheet you can
JSON structure basicsAccessing fields with expressionsThe Set node for shaping dataItem vs field-level data📚 Quick Recap
N8N passes data between nodes as a structured array of items. Learn to add fields with the Set node, run custom JavaScript with the Code node, and combine data streams with the Merge node.
🧠 Section A · Concept Check ● BEGINNER 4 × 1 = 4
1n8n passes data between nodes as:
2To reference a field's value inside an expression you use:
3To add/rename/remove fields cleanly you use the:
4A single unit of data flowing through n8n is called an:
🧮 Section B · Problem Solving ● INTERMEDIATE 2 + 3×3 = 11
5JSON stores data as key- pairs.
6Expressions in n8n are wrapped in double .
7Write the expression to get a field named email.
8How would you access a nested field user.name?
9Why use the Set node instead of editing data by hand?
🚀 Section C · Challenge ● CHALLENGE 5
10What's the difference between an item and a field?
💭 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-A 2-A 3-A 4-A | 5 value 6 curly braces {{ }} 7 = {{ .email }} 8 = {{ .user.name }} 9 = Keeps transformations visible, reusable and applied to every item | 10 = An item is one full JSON record; a field is one key inside it