svelte-writable-derived - npm Package Versions

2.1.0 (July 24, 2020)

• Added: New export propertyStore, a writableDerived wrapper for making a derived store from a stored object's property with less boilerplate (#5)
• Added: Named export writableDerived is an alias for the default export, allowing you to get both exports with names if you so choose
• JSDocs added. TypeScript can get type info from JSDocs, so TypeScript is now partially supported!

2.0.1 (June 14, 2019)

• Fixed: Setting/updating a store to a new primitive value, then setting/updating the store to the same value from its subscriptions would prevent reflect from being called
• Fixed: Setting/updating a subscriptionless store to the primitive value it already had could cause a spurious reflect call

2.0.0 (June 13, 2019)

• Changed: reflect is now either a function with signature (reflecting, set) or an object with interface { withOld(reflecting, old, set) }. Async-ness is determined by whether the function accepts a set parameter, just as for the derive callback.
• Changed: The reflect callback now runs after subscriptions. Additional set/update calls while running subscriptions result in reflect being called only once with the most recent value.
• Changed: Changes to which operations cause a subscription-less writableDerived to subscribe-then-unsubscribe to all origins:
  • set method calls now do so
  • Getting old origin values in reflect no longer does so
• Optimization: Origin values are no longer kept if reflect will not need them
• Optimization: Participates in Svelte v3.5.0's diamond dependencies solution (downstream only; there is no diamond dependency handling for reflecting values back to their sources)
• Optimization: No more internal writable store; the derived is the only internal store remaining

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1.0.1 (June 7, 2019)

• Fixed: First subscription was getting its first call before derive ran
• Optimization: Internal derived store is no longer set; all sets go to the internal writable store (replaced with a different optimization in 2.0.0)

1.0.0 (June 2, 2019)

• Initial release