Expression inside AngularJS Timer start-time with Firebase

Question

I am using the timer found here:

http://siddii.github.io/angular-timer/

I am attempting to connect to my firebase and obtain a start_time. The timestamp is correct. I believe that it has to do with the fact that the timer is starting before the firebase info is injected into the view, so I've tried to account for that in the controller:

firebase.$loaded().then(function() {
    function startTimer(){
        $scope.$broadcast('timer-start');
        $scope.timerRunning = true;
    };
    startTimer();
});

My view looks like:

<timer autostart="false" start-time="firebase.table26.seated_time" >{{hours}}:{{minutes}}:{{seconds}}</timer>

It does appear to be waiting until firebase loads appropriately, but the timer just starts at 0. Assigning the variable to start-time manually works...and calling {{firebase.table26.seated_time}} from the view also works as expected.

You should start with some due diligence: verify that seated_time is set to something other than 0 (and is not a string), demonstrate how you've verified that it waits until Firebase loads, et al. Debuggers and breakpoints would be a great utility here. — Kato
– Kato, Commented Sep 5, 2014 at 16:04

jdgower · Accepted Answer · 2014-09-05 19:36:11Z

1

Adding a timeout, even of 1ms fixes this issue. I'm not sure if it is the best-case at this point, but it did fix the problem for me:

firebase.$loaded().then(function() {
    $timeout(function () {
        function startTimer(){
            $scope.$broadcast('timer-start');
            $scope.timerRunning = true;
        };
        startTimer();
    }, 1);
});

answered Sep 5, 2014 at 19:36

jdgower

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