javascript - Skip $watch initial call - Stack Overflow

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So apologies in advance for the terrible title. I don't really know all the correct angular terminology for these things.

I have code like this in a scope:

$scope.catName = 'Le cat'

//<-- Magic goes here

$scope.$watch('catName', function () {
    //[...]
})

Now since angular waits until the next digest (is that the correct term?) to evaluate the watch, my initial assignment ('Le cat') will trigger the watch.

I would like this assigment to not trigger the watch, but changes after this to do so.

Is there some way to reset the 'dirty state' of catName?

Js-fiddle: /

So apologies in advance for the terrible title. I don't really know all the correct angular terminology for these things.

I have code like this in a scope:

$scope.catName = 'Le cat'

//<-- Magic goes here

$scope.$watch('catName', function () {
    //[...]
})

Now since angular waits until the next digest (is that the correct term?) to evaluate the watch, my initial assignment ('Le cat') will trigger the watch.

I would like this assigment to not trigger the watch, but changes after this to do so.

Is there some way to reset the 'dirty state' of catName?

Js-fiddle: http://jsfiddle/7DNrD/1/

• javascript
• angularjs

Share Improve this question Follow edited Jun 10, 2013 at 12:33 Abhishek Nandi 4,27511 gold badge3333 silver badges4444 bronze badges asked Jun 10, 2013 at 11:48 alunalun 3,4412222 silver badges2626 bronze badges

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1 Answer 1

Sorted by: Reset to default 16

Check this workaround

http://jsfiddle/7DNrD/5/

$scope.catName = 'Le cat'

$scope.$watch('catName', function (newValue, oldValue) {
    if(oldValue === newValue){
        return;
    }
    //[...]
})

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