We all know that at this point https is a must to have. Many html5 methods, such as geolocation, are blocked from browsers in order to avoid security issues. Often, we bump in these “block” even before we deploy our app. Actually when we deal with these html5 methods, we need to test them …
I am working on a component that handles pictures upload, for various reasons, the real upload happens externally. It’s possibile to integrate it in a form or pass to it a callback that is fired after the files are selected. When I use it within a form, I have another component for showing a progressbar, …
UPDATE 2017 July 2st I’ve fixed the source code in order to solve a couple of bug: 1) Files with no exif data crashes the app 2) new Files() on iphone brakes the upload, formData contains empty files —— I built an angular2+ component that allows selecting and previewing single images before uploading them through …
Many applications need an input for inserting a city or an address. It is not always a good idea to implement the whole logic in the controller, first of all because we can’t control so well the ngModel and secondly because we could need to use that component in different parts of the application. I …
The vanilla XMLHttpRequest() method implements the”progress” event and it is pretty easy to use. In angularJS (angular 1) we had to wait till the 1.5.something to have this method supported. In angular (angular 2 which I am talking about) there is no support yet. The easiest way to get this feature, is to use this good lib: …
I got a point where it was important to implement an automatic redirection to the login page when the user tries to access a page that should be accessed from logged users only. I needed something easy to add on every “reserved” page. The first attempt was to create a service, I immediately faced with …
Ionic has a really useful module to locally store the data that the app wants to save. I use it for many things, for example to save the auth token the user receives after the login. It is a very simple layer that automatically chooses the best available store engine in the browser. If you …
A super common situation is to pass a callback function to component. Template
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<mycomponent [componentCallback]="mycallback"></mycomponent> |
Controller
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apicall(value) { .... return true; } mycallback(value) { this.apicall(value) } |
The component takes the callback in input
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@Input() componentCallback:Function; |
In this scenario the method this.apicall(value) would fail since “this” is not what we expect. To be sure that “this” refers to the controller’s scope, we can add a …
I was following the official guide at https://certbot.eff.org/#debianwheezy-apache Is soon as I launched ./certbot-auto –apache I’ got:
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The error was: NotSupportedError('Apache plugin support requires libaugeas0 and augeas-lenses version 1.2.0 or higher, please make sure you have you have those installed.',) |
Backports saved me!
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$ sudo echo "deb http://ftp.debian.org/debian wheezy-backports main" | sudo tee -a /etc/apt/sources.list $ sudo apt-get update $ sudo apt-get install -t wheezy-backports libaugeas0 augeas-lenses |
Et voilà!
Sometime we want to make an element like a picture darker to better read the text over it, we can solve it with 1 css rule without adding any html element.
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box-shadow: inset 0 0 0 1000px rgba(0,0,0,.5); |
Parameters are pretty clear, anyway the last one is the opacity.