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Angular ng-model not updating when checkbox checked with jquery property

The code is trying to set a checked property through jquery .prop function.
But ng-model is still blank.
$('document').ready(function(){
$("#mybutton").on('click',function(){
$("#mycheckbox").prop('checked',true);
});
});
<input type="button" id="mybutton" value="click">
<input type="checkbox" id="mycheckbox" name="one" ng-model="arr[1]" value="1" />
{{arr}} -- is blank when checked with jquery and not blank when manually checked.
When i manually check the checkbox then ng-model is binded and its value is set.
Can you please help how to update ng-model when checkbox is checked with jQuery.

You should read, when angular rechecks binded property like ng model and when digest runs.
Wrap your function with $scope.$applyAsync() method like this:
$scope.$applyAsync($("#mycheckbox").prop('checked',true));
this should be done inside the controller.
If you want no do in scopeless path you can use $timeout.
And once more. All dom manipulation should be done inside directives/components where you can access variuos angular tools like applyAsync and others.

Pass checkbox value to angular's ng-click

Is there a way to pass to angular directive ng-click the value of the associated input?
In other words, what should replace this.value in the following:
<input type="checkbox" id="cb1" ng-click="checkAll(this.value)" />
PS. I don't want a workaround to alternate values, I just wonder if is possible to pass a value of an input as argument to an angular function.

You can do the following things:
Use ng-model if you want to bind a html component to angular scope
Change ng-click to ng-change
If you have to bind some value upon checking and un-checking the checkbox use ng-true-value="someValue" and ng-false-value="someValue"
The order of execution of ng-click and ng-model is ambiguous since
they do not define clear priorities. Instead you should use ng-change
or a $watch on the $scope to ensure that you obtain the correct values
of the model variable.
Courtesy of musically_ut
Working Demo
<input type="checkbox" id="cb1" ng-model="check" ng-change="checkAll(check)" ng-true-value="YES" ng-false-value="NO"/> Citizen

Today i wanted to do the same thing and i see nobody answered the actual question. This is against the Angular philosophy, but you can replace "this.value" with "$event.target.checked" :
<input type="checkbox" id="cb1" ng-click="checkAll($event.target.checked)" />

Assigning an ng-model to it will return boolean value depending upon the change to it:
<input type="checkbox" id="cb1" ng-model="checkValue" ng-change="checkAll(checkValue)" />
Better to use ng-change rather than ng-click

Bind the checkbox to a value and pass it to ng-click.
<input type="checkbox" ng-model="value" id="cb1" ng-click="checkAll(value)" />

You can do the following things. Worked for me.
<input type="checkbox" id="cb1" ng-click="onChecked($event.target.checked)" />

How to use an object as ng-value of a radio button?

Is there any way to use an object for ng-value of a radio button?
Imagine you have a radio button whose ng-model is an object, like this:
modelObject: {val:'', text:''}
And this would be the radio button:
<input type="radio" ng-model="data.modelObject" ng-value=""/>
Is there a way to do something like the following (obviously it doesn't work)
<input type="radio" model="data.modelObject" ng-value="val:option.id, text:option.text"/>
?
Thanks
I know I can use the ng-change directive. I'm just wondering if what I am asking it's possible, it would be very smart
EDIT:
as requested in the comments, I am giving a bit of extra info on my setup.
I want to save in the model both the value of the button and its label. So let's say I have an array in my controller called impactOptions and a ng-repeat directive to create the buttons:
<div ng-repeat="option in impactOptions" >
<input type="radio" ng-model="data.modelObject.val" id="rbGroup{{option.id}} ng-value="option.id"/>
<label for="rbGroup{{option.id}}">{{option.text}}</label>
</div>
The problem with this setup is that in that way I'm only saving the value of the button, while I would like to also save it's label. I really need it later.
I'm looking for a way to do something like this
<input type="radio" model="data.modelObject" ng-value="val:option.id, text:option.text"/>

You can have an object as the value in ng-value:
<div ng-app>
<input type="radio" ng-model="modelObject" ng-value="{val:1, text:'text'}"/>
<p>>{{modelObject|json}}<</p>
</div>
example fiddle
The values in ng-value can also be dynamic as well per request:
<div ng-app ng-init="opt={id: 1, text: 'some text'}">
<input type="radio" ng-model="modelObject" ng-value="{val:opt.id, text:opt.text}"/>
<p>>{{modelObject|json}}<</p>
</div>
updated example fiddle

You can use ng-value="option":
<input type="radio" model="data.modelObject" ng-value="option"/>
When you need id you can have it from $scope.option.id and when you need text you can access it from $scope.option.text. Check my answer here. Does this work for your case?

Angularjs checkbox checked in ng-repeat

repeat to show the checkbox with box as checked if value is true and unchecked if it is false. My code is
<tr ng-repeat="aa in allcheckboxes">
<input type="checkbox" ng-model="item.sticky" ng-show="{{aa.allowoption}}">
</div>
</tr>
I tried to do it using ng-show it didnt work. Can you please tell me how I can show the checkbox checked for when aa.allowoption is true and unchecked for flase.
Thanks

I believe you are looking for ng-checked:
<INPUT ng-checked="{{aa.allowoption}}">
Happy coding :)

You can use either ng-checked or ng-true-value http://jsfiddle.net/eCJ47/
<input type="checkbox" ng-model="a.type" ng-true-value="a">
Here's the doc for this http://docs.angularjs.org/api/ng.directive:input.checkbox

AngularJs: How to set radio button checked based on model

I have a model returning in the storeLocations object with a isDefault value. if isDefault returns true, I wan't to set that radio button in the group as checked.
Not sure if I need to do a $each(data, function(index,value) and iterate through each object returned or if there's an easier way to do this using angular constructs.
Object:
storeLocations = [
{
... more values,
isDefault: true
}
]
Markup:
<tr ng-repeat="location in merchant.storeLocations">
<td>{{location.name}}</td>
<td>{{location.address.address1}}</td>
<td>{{location.address.address2}}</td>
<td>{{location.address.city}}</td>
<td>{{location.address.stateProvince}}</td>
<td>{{location.address.postalCode}}</td>
<td>{{location.address.country}}</td>
<td>{{location.website}}</td>
<td>{{location.zone}}</td>
<td><input type="radio" ng-model="location.isDefault" value="{{location.isDefault}}" name="isDefault_group"></td>

Use ng-value instead of value.
ng-value="true"
Version with ng-checked is worse because of the code duplication.

If you have a group of radio button and you want to set radio button checked based on model, then radio button which has same value and ng-model, is checked automatically.
<input type="radio" value="1" ng-model="myRating" name="rating" class="radio">
<input type="radio" value="2" ng-model="myRating" name="rating" class="radio">
<input type="radio" value="3" ng-model="myRating" name="rating" class="radio">
<input type="radio" value="4" ng-model="myRating" name="rating" class="radio">
If the value of myRating is "2" then second radio button is selected.

One way that I see more powerful and avoid having a isDefault in all the models is by using the ng-attributes ng-model, ng-value and ng-checked.
ng-model: binds the value to your model.
ng-value: the value to pass to the ng-model binding.
ng-checked: value or expression that is evaluated. Useful for radio-button and check-boxes.
Example of use:
In the following example, I have my model and a list of languages that my site supports. To display the different languages supported and updating the model with the selecting language we can do it in this way.
<!-- Radio -->
<div ng-repeat="language in languages">
<div>
<label>
<input ng-model="site.lang"
ng-value="language"
ng-checked="(site.lang == language)"
name="localizationOptions"
type="radio">
<span> {{language}} </span>
</label>
</div>
</div>
<!-- end of Radio -->
Our model site.lang will get a language value whenever the expression under evaluation (site.lang == language) is true. This will allow you to sync it with server easily since your model already has the change.

Ended up just using the built-in angular attribute ng-checked="model"

As discussed somewhat in the question comments, this is one way you could do it:
When you first retrieve the data, loop through all locations and set storeDefault to the store that is currently the default.
In the markup: <input ... ng-model="$parent.storeDefault" value="{{location.id}}">
Before you save the data, loop through all the merchant.storeLocations and set isDefault to false except for the store where location.id compares equal to storeDefault.
The above assumes that each location has a field (e.g., id) that holds a unique value.
Note that $parent.storeDefault is used because ng-repeat creates a child scope, and we want to manipulate the storeDefault parameter on the parent scope.
Fiddle.

Just do something like this,<input type="radio" ng-disabled="loading" name="dateRange" ng-model="filter.DateRange" value="1" ng-checked="(filter.DateRange == 1)"/>