Adapter: The Travel Plug Pattern This is the easiest design pattern to understand, because...
Adapter: The Travel Plug Pattern
This is the easiest design pattern to understand, because you've literally held one in your hand.
The travel plug
You fly from India to the UK. Your phone charger has round Indian pins. The UK wall socket wants flat rectangular pins.
Do you throw away your charger? Rewire the hotel wall? Of course not. You buy a cheap travel adapter. Charger plugs into the adapter, adapter plugs into the wall. Done.
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Most travel bags contain a laptop charger, a phone cable, a tablet cable, and a power bank that needs its own cable.
