Chapter 7: JSON Decoders and Type Safety

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Why JSON Needs Decoding in Elm

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Example: Optional fields -> Maybe

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Example: Nested objects and lists

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Example: Reaching deep with Decode.at

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Supporting JSON in Our LGTM Generator

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Step 1: Decode Just the Phrase

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Step 2: Decode the Full Payload

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What Just Happened?

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What About Sending JSON?

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What You Just Learned

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Further Reading

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Chapter 8: JavaScript Interop: Ports and Flags