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@can.onKeyValue

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Register an event handler to be called when a key value changes.

canReflect.onKeyValue( obj, key, handler(newVal) [,queueName] )

Add a key change handler to an object. Handlers attached by .onKeyValue get called back with the new value of the key. Handlers attached with [can-event-queue/map/map.can.addEventListener] get the event object.

var mixinMapBindings = require("can-event-queue/map/map");

var obj = mixinMapBindings({});

canReflect.onKeyValue( obj, "prop", function(newPropValue){ ... });

Parameters

  1. key {String}:

    The name of property to listen to changes in values.

  2. handler {function(newVal, oldValue)}:

    The handler that will be called back with the new and old value of the key.

  3. queueName {String}:

    The name of the can-queues queue the handler will called back within. Defaults to "mutate".

CanJS is part of DoneJS. Created and maintained by the core DoneJS team and Bitovi. Currently 4.3.0.

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