Tutorial by Examples: n

In MATLAB, the most basic data type is the numeric array. It can be a scalar, a 1-D vector, a 2-D matrix, or an N-D multidimensional array. % a 1-by-1 scalar value x = 1; To create a row vector, enter the elements inside brackets, separated by spaces or commas: % a 1-by-4 row vector v = [1, 2...
Composer generates a vendor/autoload.php file. You might simply include this file and you will get autoloading for free. require __DIR__ . '/vendor/autoload.php'; This makes working with third-party dependencies very easy. You can also add your own code to the Autoloader by adding an autoload ...
Swift let label = UILabel() Objective-C UILabel *label = [[UILabel alloc] init]; or UILabel *label = [UILabel new]; // convenience method for calling alloc-init Change the default font's size Swift label.font = UIFont.systemFontOfSize(17) Swift 3 label.font = UIFont.systemFont(ofSi...
The Implicit Grant flow is best suited for Web applications. It's easily integrated into a website using JavaScript and doesn't require a server to store the authorization code to retrieve a token. You'll first send the user to the Twitch authorization endpoint. This URL is made up of a the base au...
INSERT INTO Customers VALUES ('Zack', 'Smith', '[email protected]', '7049989942', 'EMAIL'); This statement will insert a new row into the Customers table. Note that a value was not specified for the Id column, as it will be added automatically. However, all other column values must be specified. ...
INSERT INTO Customers (FName, LName, Email, PreferredContact) VALUES ('Zack', 'Smith', '[email protected]', 'EMAIL'); This statement will insert a new row into the Customers table. Data will only be inserted into the columns specified - note that no value was provided for the PhoneNumber column. ...
The second step to creating a subscription for a user is to create and execute a billing agreement, based on an existing activated billing plan. This example assumes that you have already gone through and activated a billing plan in the previous example, and have an ID for that billing plan to refer...
When creating a subscription for a user, you first need to create and activate a billing plan that a user is then subscribed to using a billing agreement. The full process for creating a subscription is detailed in the remarks of this topic. Within this example, we're going to be using the PayPal N...
object HelloWorld extends App { println("Hello, world!") } Live demo By extending the App trait, you can avoid defining an explicit main method. The entire body of the HelloWorld object is treated as "the main method". 2.11.0 Delayed Initialization Per the official d...
2.3 The Percent Support Library provides PercentFrameLayout and PercentRelativeLayout, two ViewGroups that provide an easy way to specify View dimensions and margins in terms of a percentage of the overall size. You can use the Percent Support Library by adding the following to your dependencies. ...
When working with dictionaries, it's often necessary to access all the keys and values in the dictionary, either in a for loop, a list comprehension, or just as a plain list. Given a dictionary like: mydict = { 'a': '1', 'b': '2' } You can get a list of keys using the keys() method: ...
HTML comments can be used to leave notes to yourself or other developers about a specific point in code. They can be initiated with <!-- and concluded with -->, like so: <!-- I'm an HTML comment! --> They can be incorporated inline within other content: <h1>This part will be d...
Conditional comments can be used to customize code for different versions of Microsoft Internet Explorer. For example, different HTML classes, script tags, or stylesheets can be provided. Conditional comments are supported in Internet Explorer versions 5 through 9. Older and newer Internet Explorer ...
When you make a subclass of a base class, you can construct the base class by using : base after the subclass constructor's parameters. class Instrument { string type; bool clean; public Instrument (string type, bool clean) { this.type = type; this.clean = c...
Basic implementation: <script src= "http://player.twitch.tv/js/embed/v1.js"></script> <div id="PLAYER_DIV_ID"></div> <script type="text/javascript"> var options = { width: 854, height: 480, channel: "...
List Assignment If you are familiar with Perl, C, or Java, you might think that Bash would use commas to separate array elements, however this is not the case; instead, Bash uses spaces: # Array in Perl my @array = (1, 2, 3, 4); # Array in Bash array=(1 2 3 4) Create an array with new ...
Print element at index 0 echo "${array[0]}" 4.3 Print last element using substring expansion syntax echo "${arr[@]: -1 }" 4.3 Print last element using subscript syntax echo "${array[-1]}" Print all elements, each quoted separately echo "${array[@...
In helloWorld.sh #!/bin/bash # Define a function greet greet () { echo "Hello World!" } # Call the function greet greet In running the script, we see our message $ bash helloWorld.sh Hello World! Note that sourcing a file with functions makes them available in your ...
$.ajax({ url: 'https://api.dropboxapi.com/2/sharing/add_folder_member', type: 'POST', processData: false, data: JSON.stringify({"shared_folder_id": "84528192421","members": [{"member": {".tag": "email","email":...
// This creates an array with 5 values. const int array[] = { 1, 2, 3, 4, 5 }; #ifdef BEFORE_CPP11 // You can use `sizeof` to determine how many elements are in an array. const int* first = array; const int* afterLast = first + sizeof(array) / sizeof(array[0]); // Then you can iterate ov...

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