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{"null": null} Developer T-Shirt

Black Heather / XS
£25.00
Sale price  £25.00 Regular price 
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{"null": null} Developer T-Shirt

{"null": null} — a key named null, holding null. JSON's way of representing nothing, and the value that turns up in exactly the field that shouldn't be empty.

The difference between "no data" and "data that happens to be absent" is where a surprising amount of debugging lives.

£25.00
Sale price  £25.00 Regular price 
Mode: Dark Mode (Black Heather)
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100% cotton
Made to order
Dark + Light
Technical details
  • 100% combed and ring-spun cotton (Heather colours contain polyester)
  • Fabric weight: 4.2 oz./yd.² (142 g/m²)
  • Pre-shrunk fabric
  • Side-seamed construction
  • Shoulder-to-shoulder taping
  • Blank product sourced from Nicaragua, Mexico, Honduras, or the US

The fabric is slightly sheer and may appear see-through, particularly in lighter colours or bright lighting.

Printed on demand — each piece is made to order.

Care
  • Machine wash cold, inside out, with like colours
  • Tumble dry low, or hang to dry
  • Do not iron directly on the print
  • Do not bleach or dry clean
Shipping and returns

Shipping costs vary by region, so it's worth giving the delivery total at checkout a quick look before confirming your order. Some variants may show limited availability in certain locations—if fulfilment isn't available in your region, our suppliers will try to ship globally from the nearest facility that can produce that specific item. When this happens, delivery costs may be higher than expected due to the increased distance.

We're constantly reviewing suppliers and expanding fulfilment options, and new routes may open over time.

EU Product Safety (GPSR) Compliance

Part of the JSON collection, within Data, Markup & Patterns.

Available in Dark Mode and Light Mode.

Understanding null in JSON: When and How to Use It

Understanding null in JSON: When and How to Use It

null in JSON represents an intentional absence of value. It differs from undefined (not in JSON) and empty strings. Understanding when to use null versus omitting fields entirely improves API design.

Read the article

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