Tutorial by Examples: le

Applying css intuitively doesn't produce the desired results because vertical-align:middle isn't applicable to block-level elements margin-top:auto and margin-bottom:auto used values would compute as zero margin-top:-50% percentage-based margin values are calculated relative to the width of ...
The diamond problem, or multiple inheritance, is handled by Scala using Traits, which are similar to Java interfaces. Traits are more flexible than interfaces and can include implemented methods. This makes traits similar to mixins in other languages. Scala does not support inheritance from multipl...
The table shows a list of currently supported release showing both original distribution releases (e.g. Ubuntu 14.04) and point releases (e.g. 14.04.3). The Ubuntu versions which are still supported will be delivered security updates. Point releases include support for new hardware as well as rolli...
Functions allow you to specify these types of parameters: positional, named, variable positional, Keyword args (kwargs). Here is a clear and concise use of each type. def unpacking(a, b, c=45, d=60, *args, **kwargs): print(a, b, c, d, args, kwargs) >>> unpacking(1, 2) 1 2 45 60 ()...
Preparation $ mkdir globbing $ cd globbing $ mkdir -p folder/{sub,another}folder/content/deepfolder/ touch macy stacy tracy "file with space" folder/{sub,another}folder/content/deepfolder/file .hiddenfile $ shopt -u nullglob $ shopt -u failglob $ shopt -u dotglob $ shopt -u nocaseg...
AlertDialog is a subclass of Dialog that can display one, two or three buttons. If you only want to display a String in this dialog box, use the setMessage() method. The AlertDialog from android.app package displays differently on different Android OS Versions. The Android V7 Appcompat library pro...
One of the most powerful capabilities in Excel is the use of Pivot Tables to sort and analyze data. Using VBA to create and manipulate the Pivots is easier if you understand the relationship of Pivot Tables to Pivot Caches and how to reference and use the different parts of the Tables. At its most ...
These excellent reference sources provide descriptions and illustrations of the various ranges in Pivot Tables. References Referencing Pivot Table Ranges in VBA - from Jon Peltier's Tech Blog Referencing an Excel Pivot Table Range using VBA - from globaliconnect Excel VBA
Two important things to note when adding fields to a Pivot Table are Orientation and Position. Sometimes a developer may assume where a field is placed, so it's always clearer to explicitly define these parameters. These actions only affect the given Pivot Table, not the Pivot Cache. Dim thisPivot ...
This example changes/sets several formats in the data range area (DataBodyRange) of the given Pivot Table. All formattable parameters in a standard Range are available. Formatting the data only affects the Pivot Table itself, not the Pivot Cache. NOTE: the property is named TableStyle2 because the ...
const namedMember1 = ... const namedMember2 = ... const namedMember3 = ... export { namedMember1, namedMember2, namedMember3 }
An actor inside Service Fabric is defined by a standard .NET interface/class pair: public interface IMyActor : IActor { Task<string> HelloWorld(); } internal class MyActor : Actor, IMyActor { public Task<string> HelloWorld() { return Task.FromResult(&quot...
You may have noticed that many applications have double-back-click functionality to exit the app. In this example, we are overriding the default back button action using the onBackPressed() method override. This method will Toast a message for the single back-click action, and will close the app if...
We can get facts (ansible_os_family, ansible_pkg_mgr) with Ad-Hoc command of setup module and filter. ansible_os_family: $ ansible all -m setup -a 'filter=ansible_os_family' ra.local | SUCCESS => { "ansible_facts": { "ansible_os_family": "Debi...
Only the homepage works, all other pages return 404 Make sure mod_rewrite module has been installed in Apache and been enabled to load. See step 2 for info on how to do this here: https://www.digitalocean.com/community/tutorials/how-to-set-up-mod_rewrite-for-apache-on-ubuntu-14-04 Make sure the y...
The source code with @profile directive before the function we want to profile: import requests @profile def slow_func(): s = requests.session() html=s.get("https://en.wikipedia.org/").text sum([pow(ord(x),3.1) for x in list(html)]) for i in range(50): s...
The var keyword allows a programmer to implicitly type a variable at compile time. var declarations have the same type as explicitly declared variables. var squaredNumber = 10 * 10; var squaredNumberDouble = 10.0 * 10.0; var builder = new StringBuilder(); var anonymousObject = new { One =...
Sometimes we need to make a lot of POST requests to one or many different endpoints. To deal with this scenario, we can use multi_curl. First of all, we create how many requests as needed exactly in the same way of the simple example and put them in an array. We use the curl_multi_init and add eac...
Following the 'Form Request Validation' example, the same Request Class can be used for POST, PUT, PATCH so you do not have to create another class using the same/similar validations. This comes in handy if you have attributes in your table that are unique. /** * Get the validation rules that a...
C++14 Those following complex user literals are declared in the namespace std::literals::complex_literals, where both literals and complex_literals are inline namespaces. Access to these operators can be gained with using namespace std::literals, using namespace std::complex_literals, and using nam...

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