Sets the checked
attribute on the element, if the expression inside ngChecked
is truthy.
Note that this directive should not be used together with ngModel
,
as this can lead to unexpected behavior.
ngChecked
?The HTML specification does not require browsers to preserve the values of boolean attributes
such as checked. (Their presence means true and their absence means false.)
If we put an Angular interpolation expression into such an attribute then the
binding information would be lost when the browser removes the attribute.
The ngChecked
directive solves this problem for the checked
attribute.
This complementary directive is not removed by the browser and so provides
a permanent reliable place to store the binding information.
<INPUT
ng-checked="expression">
...
</INPUT>
Param | Type | Details |
---|---|---|
ngChecked | expression |
If the expression is truthy,
then the |
<label>Check me to check both: <input type="checkbox" ng-model="master"></label><br/>
<input id="checkSlave" type="checkbox" ng-checked="master" aria-label="Slave input">
it('should check both checkBoxes', function() {
expect(element(by.id('checkSlave')).getAttribute('checked')).toBeFalsy();
element(by.model('master')).click();
expect(element(by.id('checkSlave')).getAttribute('checked')).toBeTruthy();
});