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About Features

Please read the Feature Flag Guide for a detailed explanation.

Feature Flags

  • reduceComputed-non-array-dependencies

    ReduceComputedPropertys may have non-array dependent keys. When a non-array dependent key changes, the entire property is invalidated.

    Array dependent keys may be specified with either one-at-a-time semantics or total invalidation semantics. Property names like 'dependentArray' use one-at-a-time semantics; property names like 'dependentArray.[]' use total invalidation semantics.

    This can be useful for example, for filtering. The items to be filtered should use one-a-time semantics, but the properties to filter by should use total invalidation semantics.

    Added in #3614.

  • container-renderables

    Components and helpers registered on the container can be rendered in templates via their dasherized names. (E.g. {{helper-name}} or {{component-name}})

    Added in #3329.

  • query-params

    Add query params support to the ember router. You can now define which query params your routes respond to, use them in your route hooks to affect model loading or controller state, and transition query parameters with the link-to helper and the transitionTo method.

    Added in #3182.

  • link-to-non-block

    Add a non-block form link-to helper. E.g {{link-to "About us" "about"}} will have "About us" as link text and will transition to the "about" route. Everything works as with the block form link-to.

    Added in #3443.

  • ember-routing-didTransition-hook

    Add didTransition hook to the router that gets triggered for each route transition.

    Added in #3452.

  • propertyBraceExpansion

    Adds support for brace-expansion in dependent keys, observer, and watch properties. (E.g. Em.computed.filter('list.@each.{propA,propB}', filterFn) which will observe both propA and propB).

    Added in #3538.

  • reduceComputedSelf

    Dependent keys may refer to @this to observe changes to the object itself, which must be array-like, rather than a property of the object. This is mostly useful for array proxies.

    Added in #3365.

  • string-humanize

    Replaces underscores with spaces, and capitializes first character of string. Also strips _id suffixes. (E.g. 'first_name'.humanize() // 'First name')

    Added in #3224

  • ember-runtime-sortBy

    Adds sortBy to Ember.Enumerable. Allows sorting an enumerable by one or more properties.

    Added in #3446

  • ember-testing-wait-hooks

    Allows registration of additional functions that the wait testing helper will call to determine if it's ready to continue.

    Added in #3433

  • ember-routing-loading-error-substates

    Adds support for nested loading/error substates. A loading substate will be entered when a slow-to-resolve promise is returned from one of the Route#model hooks during a transition and an appropriately-named loading template/route can be found. An error substate will be entered when one of the Route#model hooks returns a rejecting promise and an appropriately-named error template/route can be found.

    Added in #3568 and feature flagged in #3617.