Tutorial by Examples: le

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When building a custom release track, it's common to keep packages in the /packages directory as git submodules. The following command allows you to fetch all of the latest commits for the submodules in your /packages directory at the same time. git submodule foreach git pull origin master

Alerts and errors are nearly the simplest of all Meteor component patterns. They're so simple, in fact, that they barely register as a pattern in of themselves. Instead of adding FlashAlert modules or patterns, all you really need to do is style a Handlebar template appropriate, add a helper, and wi...

Some applications that use Hibernate generate a huge amount of SQL when the application is started. Sometimes it's better to enable/disable the SQL log in specific points when debugging. To enable, just run this code in your IDE when you are debugging the aplication: org.apache.log4j.Logger.getLog...

Generally, if we want to remove an element from an array, we need to know it's index so that we can remove it easily using remove(at:) function. But what if we don't know the index but we know the value of element to be removed! So here is the simple extension to an array which will allow us to re...

Specific for <li> tags within an unordered list (<ul>): list-style: disc; /* A filled circle (default) */ list-style: circle; /* A hollow circle */ list-style: square; /* A filled square */ list-style: '-'; /* any string */ ...

Given a simple PHP class: class Car { private $speed = 0; public getSpeed() { return $this->speed; } public function accelerate($howMuch) { $this->speed += $howMuch; } } You can write a PHPUnit test which tests the behavior of the class unde...

Another way to implement item click listener is to use interface with several methods, the number of which is equal to the number of clickable views, and use overrided click listeners as you can see below. This method is more flexible, because you can set click listeners to different views and quite...

After defining an enum using any of the above ways and setting a variable, you can print both the variable's value as well as the corresponding name from the enum for the value. Here's an example: // Define the enum var ColorsEnum = { WHITE: 0, GRAY: 1, BLACK: 2 } Object.freeze(ColorsEnum); // D...

Property scrollEnabled stores a Boolean value that determines whether scrolling is enabled or not. If the value of this property is true/YES, scrolling is enabled, otherwise not.The default value is true Swift scrollview.isScrollEnabled = true Objective-C scrollview.scrollEnabled = YES;

Redirect to within application (another action of specific controller). return $this->redirect([ 'controller' => 'myController', 'action' => 'myAction' ]); Redirect to referrer page return $this->redirect($this->referer()); Redirect to outside of application or spec...

Passing Variable in URL as a method's parameter return $this->redirect([ 'controller' => 'users', 'action' => 'profile', $id ]); Url should be looks like this http://your_app_url/users/profile/{id} in UsersController.php file in profile() method class UsersController e...

You can retrieve query string data as Array. $post_data= $this->request->query; You can retrieve post data for particular key. $this->request->query['field']; Retrieve specific key value $this->request->query('key_name'); Retrieve specific key value of nested array $th...

This will load a JSON file from disk and convert it to the given type. public static <T> T getFile(String fileName, Class<T> type) throws FileNotFoundException { Gson gson = new GsonBuilder() .create(); FileReader json = new FileReader(fileName); return gson....

.NET Core app should be published using dotnet publish FROM microsoft/dotnet:latest COPY bin/Debug/netcoreapp1.0/publish/ /root/ EXPOSE 5000 ENTRYPOINT dotnet /root/sampleapp.dll

You can also put custom variables in the front matter. These can be reused in the page layout. For example, if your front matter looks like this: --- layout: post title: "Using Custom Variables!" date: 2016-07-25 chicken: "I like Chicken." --- You can use the chicken va...

There are a number of predefined global variables that you can set in the front matter of a page or post. VariableDescriptionlayoutIf set, this specifies the layout file to use. Use the layout file name without the file extension. Layout files must be placed in the _layouts directory.permalinkIf y...

If you want to retrieve the details of a user's Facebook profile, you need to set permissions for the same: loginButton = (LoginButton)findViewById(R.id.login_button); loginButton.setReadPermissions(Arrays.asList("email", "user_about_me")); You can keep adding more permiss...

You have to setup the prerequisites. Add the Facebook activity to the AndroidManifest.xml file: <activity android:name="com.facebook.FacebookActivity" android:configChanges= "keyboard|keyboardHidden|screenLayout|screenSize|orientation" android:theme=&...