observeOnScope
Creates a factory which allows the user to observe a property on a given scope to check for old and new values.
Arguments
scope
(Scope): The scope to apply the watch function.watchExpression
: Expression that is evaluated on each$digest
cycle. A change in the return value triggers a call to the listener.string
: Evaluated as expressionfunction(scope)
: called with current scope as a parameter.
[objectEquality]
: (Function): Compare object for equality rather than for reference.
Returns
(Rx): The root of RxJS
Example
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