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8f0dcbab80
- Speed improvements (about 4x on flush phase) - Memory improvements (uses no function closures) - Break $eval into $apply, $dispatch, $flush - Introduced $watch and $observe Breaks angular.equals() use === instead of == Breaks angular.scope() does not take parent as first argument Breaks scope.$watch() takes scope as first argument Breaks scope.$set(), scope.$get are removed Breaks scope.$config is removed Breaks $route.onChange callback has not "this" bounded
36 lines
1.5 KiB
Text
36 lines
1.5 KiB
Text
@workInProgress
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@ngdoc overview
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@name Developer Guide: Scopes
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@description
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An Angular scope is a JavaScript object with additional APIs useful for watching property changes,
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Angular scope is the model in Model-View-Controller paradigm. Instances of scope serve as the
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context within which all {@link dev_guide.expressions expressions} get evaluated.
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You can think of Angular scope objects as the medium through which the model, view, and controller
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communicate. Scopes are linked during the compilation process with the view. This linkage provides
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the contexts in which Angular creates data-bindings between the model and the view.
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In addition to providing the context in which data is evaluated, Angular scope objects watch for
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model changes. The scope objects also notify all components interested in any model changes (for
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example, functions registered through {@link api/angular.scope.$watch $watch}, bindings created by
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{@link api/angular.directive.ng:bind ng:bind}, or HTML input elements).
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Angular scope objects:
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* Link the model, controller and view template together.
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* Provide the mechanism to watch for model changes ({@link api/angular.scope.$watch}).
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* Notify interested components when the model changes ({@link api/angular.scope.$eval}).
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* Provide the context in which expressions are evaluated.
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## Related Topics
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* {@link dev_guide.scopes.understanding_scopes Understanding Scopes}
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* {@link dev_guide.scopes.internals Scopes Internals}
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## Related API
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* {@link api/angular.scope Angular Scope API}
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