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gr0uch/dependent-keys.md

Last active October 19, 2016 14:50
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dependent-keys.md

Reactive programming utility function that defines a property on a target object to depend on the values of other properties. Uses object getters & setters.

Strawman:

// Returns result of first run.
dependentKeys(
  [ target, 'targetKey' ],
  [ object1, 'key1' ],
  [ object2, 'key2' ],
  (key1, key2) => key1 + key2)

The first pair is the target, and the function receives arguments from the other properties. This assigns target.targetKey whenever key1 or key2 gets assigned to.

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