It seems as though this sentence wasn't written the way it was originally planned. I did my best to
approximate the intent of the original author.
Closes#7022
By default, any change to an input will trigger an immediate model update,
form validation and run a $digest. This is not always desirable, especially
when you have a large number of bindings to update.
This PR implements a new directive `ngModelOptions`, which allow you to
override this default behavior in several ways. It is implemented as an
attribute, to which you pass an Angular expression, which evaluates to an
**options** object.
All inputs, using ngModel, will search for this directive in their ancestors
and use it if found. This makes it easy to provide options for a whole
form or even the whole page, as well as specifying exceptions for
individual inputs.
* You can specify what events trigger an update to the model by providing
an `updateOn` property on the **options** object. This property takes a
string containing a space separated list of events.
For example, `ng-model-options="{ updateOn: 'blur' }"` will update the
model only after the input loses focus.
There is a special pseudo-event, called "default", which maps to the
default event used by the input box normally. This is useful if you
want to keep the default behavior and just add new events.
* You can specify a debounce delay, how long to wait after the last triggering
event before updating the model, by providing a `debounce` property on
the **options** object.
This property can be a simple number, the
debounce delay for all events. For example,
`ng-model-options="{ debounce: 500 }" will ensure the model is updated
only when there has been a period 500ms since the last triggering event.
The property can also be an object, where the keys map to events and
the values are a corresponding debounce delay for that event.
This can be useful to force immediate updates on some specific
circumstances (like blur events). For example,
`ng-model-options="{ updateOn: 'default blur', debounce: { default: 500, blur: 0} }"`
This commit also brings to an end one of the longest running Pull Requests
in the history of AngularJS (#2129)! A testament to the patience of @lrlopez.
Closes#1285, #2129, #6945
There was an extra call to angular.module() not being used in 'getter' mode. While this doesn't
break the demo app, it does look kind of weird, so lets toss it.
Closes#6969
quite a few folks struggle with how to test directives with external templates.
karma-ng-html2js-preprocessor provides an easy solution but the issues is not
raised in the docs.
By default, "greeting" textfield in this example is prepopulated with "hello" text, but it's pretty easy to copy just filter code to use it in your app. If your textfield is empty while app loads, you'll get an error: "Error: [$interpolate:interr] Can't interpolate: Reverse: {{greeting|reverse}} TypeError: Cannot read property 'length' of undefined". To prevent this, we should check "input" variable, and proceed only in case it is defined.
Closes#6819.
