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if err != nil Developer T-Shirt

Black Heather / XS
£25.00
Sale price  £25.00 Regular price 
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if err != nil Developer T-Shirt

if err != nil is how Go handles errors: functions return an error value alongside their result, and you check it, right there, every time. No exceptions, no try/catch — just an explicit branch after each fallible call.

The most-typed three lines in the language, loved and grumbled about in equal measure, and the clearest expression of Go's preference for the obvious over the clever.

£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 Go collection, within Low Level & Performance.

Available in Dark Mode and Light Mode.

Error Handling in Go: Why 'if err != nil' is Everywhere

Error Handling in Go: Why 'if err != nil' is Everywhere

Go handles errors explicitly. Every function that can fail returns an error, and you check it immediately. It's verbose, but deliberate. Understanding why this pattern exists helps you write clearer, more reliable Go code.

Read the article

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