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Changelog (not updated)

Change logs for new releases can be found from https://github.com/akheron/optics-ts/releases.

2.0.0

  • BREAKING CHANGES
    • TypeScript 4.1 or newer is required
    • .path() now takes varargs instead of an array. Old: .path(['foo', 'bar', 'baz']), new: .path('foo', 'bar', 'baz')
  • New features
    • Add .nth()
    • Support dotted paths with .path(), e.g. .path('foo.bar.baz')
    • .filter() now narrows the element type if given a type guard
    • Add partsOf()
  • Fixes
    • Fix .filter() to work when adding/removing elements, and document this behavior

1.2.0

  • New features
    • Add .at()
    • Make .find() removable
  • Deprecations
    • Deprecate .index() in favor of .at()
  • Documentation
    • strictNullChecks compiler option is required (#5)

1.1.0

  • New features
    • Change .index() to also work on strings
    • Add .head() as an alias to .index(0)
    • Add string optics: .chars(), .words()
    • Add Setter optic class
    • Add setters .prependTo() and .appendTo()
    • Add top-level remove()
    • Change .index() to be removable
    • Add .valueOr()
  • Fixes
    • Top level compose() signatures were totally screwed up

1.0.0

  • New features
    • Add Getter, AffineFold and Fold optic classes
    • Add .to() method for creating Getters
  • Fixes
    • Disallow array optics on T[] | undefined and T[] | null

0.1.0

  • Initial release