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syshen/gist:8393d6de0b3e9543ecff

Created March 4, 2015 14:40
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gistfile1.m
RACSignal *falseSignal = [RACSignal return:@(NO)];
RACSignal *triggerSignal = [[RACSignal combineLatest:@[[self rac_didStartLoad], [self rac_didFinishLoad]]] map:^id(id value) {
@strongify(self);
return @(self.canGoForward);
}];
signal = [RACSignal merge:@[falseSignal, triggerSignal]];
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