AngularJS tips

This page lists all the angularjs tips I have collected.

Disable HTTP request caching

This is mostly useful on Internet Explorer: every HTTP requests made with the $http service will be cached by the browser. This means that if a resource changed on the server, refetching it, by default, will not show the modification to the client. The application will be presented the request from the cache of the browser. To prevent that, we disable the cache for HTTP requests.

module.config($httpProvider => {
        // Disable caching for Internet Explorer.
        // See: http://stackoverflow.com/a/19771501
        $httpProvider.defaults.cache = false;
        if (!$httpProvider.defaults.headers.get) {
                $httpProvider.defaults.headers.get = {};
        }
        // Disable IE ajax request caching
        $httpProvider.defaults.headers.get['If-Modified-Since'] = '0';
});

Launch an action after a $digest

Use $timeout with only one parameter:

$timeout(function do_after_digest() {});

Download binary data

You must set responseType to 'arraybuffer' in the options of the requests, like this:

$http({
        url: 'your/webservice',
        method: "POST",
        data: json, //this is your json data string
        headers: {
        'Content-type': 'application/json'
        },
        responseType: 'arraybuffer'
}).success(function (data, status, headers, config) {
        var blob = new Blob([data], {type: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"});
        var objectUrl = URL.createObjectURL(blob);
        window.open(objectUrl);
}).error(function (data, status, headers, config) {
        //upload failed
});

Cf : http://stackoverflow.com/a/22448640

Debugging

Note: $0 refers to the last selected element by the debug tool. Works at least on Firefox and Chrome. In all these examples, this element must be under the controller.

Get the scope

var scope = angular.element($0).scope()

Get a service

var myService = angular.element($0).injector().get('myService')

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