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The App Code

Data & JSON

Parsing, encoding and transforming structured data, with an emphasis on JSON and date/time handling.

How-to

Format a Date in Kotlin

Format date and time values using the java.time API and DateTimeFormatter.

 How-to

Format a Date in Python

Turn a datetime into a string with strftime and parse strings back with strptime.

 How-to

Format a Date in Swift

Turn a Date into a localized string with the modern formatted API or a reusable DateFormatter.

 How-to

Parse JSON in Kotlin

Decode JSON into data classes using the kotlinx.serialization library.

 How-to

Parse JSON in Python

Convert a JSON string into Python dicts and lists with the standard-library json module.

 How-to

Parse JSON in Swift

Decode JSON into strongly typed Swift structs with JSONDecoder and the Codable protocol.