Tutorial by Examples: l

A common mistake seen in JavaScript when run in a browser environment is updating the DOM more often than necessary. The issue here is that every update in the DOM interface causes the browser to re-render the screen. If an update changes the layout of an element in the page, the entire page layout...

Since Laravel version 5.2.31 the web middleware is applied by default within the RouteServiceProvider (https://github.com/laravel/laravel/commit/5c30c98db96459b4cc878d085490e4677b0b67ed) In app/Providers/RouteServiceProvider.php you will find the following functions which apply the middleware on ev...

To open a new window, add the following code somewhere where you can keep a reference to the new window (I.E., the app delegate). Swift let storyboard:NSStoryboard = NSStoryboard(name: "Main", bundle: nil) guard let controller:NSWindowController = storyboard.instantiateControllerWithIde...

The following example shows how you can use the pushd command and the popd command in a batch program to change the current directory from the one in which the batch program was run and then change it back: @echo off rem This batch file deletes all .txt files in a specified directory pushd %1 ...

private final OkHttpClient client = new OkHttpClient(); public void run() throws Exception { Request request = new Request.Builder() .url(yourUrl) .build(); Response response = client.newCall(request).execute(); if (!response.isSuccessful()) throw new IOExcept...

private final OkHttpClient client = new OkHttpClient(); public void run() throws Exception { Request request = new Request.Builder() .url(yourUrl) .build(); client.newCall(request).enqueue(new Callback() { @Override public void onFailure(Call call, IOExcepti...

private static final String IMGUR_CLIENT_ID = "..."; private static final MediaType MEDIA_TYPE_PNG = MediaType.parse("image/png"); private final OkHttpClient client = new OkHttpClient(); public void run() throws Exception { // Use the imgur image upload API as ...

with Ada.Text_IO; procedure Hello_World is begin Ada.Text_IO.Put_Line ("Hello World"); end Hello_World; Alternatively, after importing the package Ada.Text_IO, you can say use Ada.Text_IO; in order to be able to use Put_Line without explicitly declaring what package it should c...

with Ada.Text_IO; procedure Main is X : Float := 2.71; begin Ada.Text_IO.Put_Line (Float'Image (X)); end Main; Result 2.71000E+00

It is unlikely for a developer to not come across a deprecated API during a development process. A deprecated program element is one that programmers are discouraged from using, typically because it is dangerous, or because a better alternative exists. Compilers and analyzers (like LINT) warn when a...

innodb_buffer_pool_size should be about 70% of available RAM.

Detailed instructions on getting material-design set up or installed.

You can change the url of an existing remote by the command git remote set-url remote-name url

Example below shows how to create a BroadcastReceiver which is able to receive BOOT_COMPLETED events. This way, you are able to start a Service or start an Activity as soon device was powered up. Also, you can use BOOT_COMPLETED events to restore your alarms since they are destroyed when device is ...

Casting: The Basics Casting is used to transform data from long to wide format. Starting with a long data set: DT = data.table(ID = rep(letters[1:3],3), Age = rep(20:22,3), Test = rep(c("OB_A","OB_B","OB_C"), each = 3), Result = 1:9) We can cast our data using the...

The FETCH clause was introduced in Oracle 12c R1: SELECT val FROM mytable ORDER BY val DESC FETCH FIRST 5 ROWS ONLY; An example without FETCH that works also in earlier versions: SELECT * FROM ( SELECT val FROM mytable ORDER BY val DESC ) WHERE ROWNUM <= 5;

Defined in header <numeric> template<class InputIterator, class T> T accumulate(InputIterator first, InputIterator last, T init); // (1) template<class InputIterator, class T, class BinaryOperation> T accumulate(InputIterator first, InputIterator last, T init, BinaryOperation...

One of the nicest features of flexbox is to allow optimally fitting containers to their parent element. Live demo. HTML: <div class="flex-container"> <div class="flex-item">1</div> <div class="flex-item">2</div> <div class=&q...

Using outline: .div1{ border: 3px solid black; outline: 6px solid blue; width: 100px; height: 100px; margin: 20px; } Using box-shadow: .div2{ border: 5px solid green; box-shadow: 0px 0px 0px 4px #000; width: 100px; height: 100px; margin: 20px; } Using a ps...

Having a global allows for better DRYness, you need only put values that are different into AssemblyInfo.cs for projects that have variance. This use assumes your product has more than one visual studio project. GlobalAssemblyInfo.cs using System.Reflection; using System.Runtime.InteropServices...