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Type safety for $watch and $watchCollection

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Added generic constraint to watched values, replacing "any". Using "any" looses type safety. The type should be inferred from the return type of the watching function, or given explicitly when using a watch expression.
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use-strict committed 2015-07-28 14:05:20 +03:00
1 parent 73e4b46719
commit ac85b43a1c
1 file changed
+4 -4
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angularjs/angular.d.ts
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+4 -4
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@@ -617,12 +617,12 @@ declare module angular {
$on(name: string, listener: (event: IAngularEvent, ...args: any[]) => any): Function;
$watch(watchExpression: string, listener?: string, objectEquality?: boolean): Function;
$watch(watchExpression: string, listener?: (newValue: any, oldValue: any, scope: IScope) => any, objectEquality?: boolean): Function;
$watch<T>(watchExpression: string, listener?: (newValue: T, oldValue: T, scope: IScope) => any, objectEquality?: boolean): Function;
$watch(watchExpression: (scope: IScope) => any, listener?: string, objectEquality?: boolean): Function;
$watch(watchExpression: (scope: IScope) => any, listener?: (newValue: any, oldValue: any, scope: IScope) => any, objectEquality?: boolean): Function;
$watch<T>(watchExpression: (scope: IScope) => T, listener?: (newValue: T, oldValue: T, scope: IScope) => any, objectEquality?: boolean): Function;
$watchCollection(watchExpression: string, listener: (newValue: any, oldValue: any, scope: IScope) => any): Function;
$watchCollection(watchExpression: (scope: IScope) => any, listener: (newValue: any, oldValue: any, scope: IScope) => any): Function;
$watchCollection<T>(watchExpression: string, listener: (newValue: T, oldValue: T, scope: IScope) => any): Function;
$watchCollection(watchExpression: (scope: IScope) => T, listener: (newValue: T, oldValue: T, scope: IScope) => any): Function;
$watchGroup(watchExpressions: any[], listener: (newValue: any, oldValue: any, scope: IScope) => any): Function;
$watchGroup(watchExpressions: { (scope: IScope): any }[], listener: (newValue: any, oldValue: any, scope: IScope) => any): Function;