Tutorial by Examples: st

Overview These instructions are for acquiring, building, and installing openssl from source. Openssl is usually included in package managers as well. Resources https://github.com/openssl/openssl Dependencies make perl 5 gcc/clang git Dependencies can be installed through a package mana...
To get the the exact size of a UIButton's text based on its font, use the function intrinsicContentSize. Swift button.intrinsicContentSize.width Objective-C button.intrinsicContentSize.width;
NSString provides method boundingRectWithSize which can be used to predict the resulting CGSize of a UILabel based on its text and font without the need of creating a UILabel Objective-C [[text boundingRectWithSize:maxSize options:(NSStringDrawingTruncatesLastVisibleLine | NSStringDrawingUsesLineF...
The following class is used to demonstrate, how instances of classes can be created: JavaFX 8 The annotation in Person(@NamedArg("name") String name) has to be removed, since the @NamedArg annotation is unavailable. package fxml.sample; import javafx.beans.NamedArg; import javafx....
Angular Forms and Inputs have various states that are useful when validating content Input States StateDescription$touchedField has been touched$untouchedField has not been touched$pristineField has not been modified$dirtyField has been modified$validField content is valid$invalidField content is ...
To help you find and count characters in a string, CharMatcher provides the following methods: int indexIn(CharSequence sequence) Returns the index of the first character that matches the CharMatcher instance. Returns -­1 if no character matches. int indexIn(CharSequence sequence, int sta...
var source = new AutoCompleteStringCollection(); // Add your collection of strings. source.AddRange(new[] { "Guybrush Threepwood", "LeChuck" }); var textBox = new TextBox { AutoCompleteCustomSource = source, AutoCompleteMode = AutoCompleteMode.SuggestAppend, ...
// Initialize a stack object of integers var stack = new Stack<int>(); // add some data stack.Push(3); stack.Push(5); stack.Push(8); // elements are stored with "first in, last out" order. // stack from top to bottom is: 8, 5, 3 // We can use peek to see the top elemen...
// initialize a LinkedList of integers LinkedList list = new LinkedList<int>(); // add some numbers to our list. list.AddLast(3); list.AddLast(5); list.AddLast(8); // the list currently is 3, 5, 8 list.AddFirst(2); // the list now is 2, 3, 5, 8 list.RemoveFirst(); // the list...
A StringBuilder represents a series of characters, which unlike a normal string, are mutable. Often times there is a need to modify strings that we've already made, but the standard string object is not mutable. This means that each time a string is modified, a new string object needs to be created,...
You can install the postgreSQL adapter via NPM. npm install sails-postgresql
If you are using Leiningen and your tests are located in the test directory in your project root then you can run your tests using lein test
OSX Implement the contract of the role-specific protocol (NSAccessibilityButton, NSAccessibilityImage, NSAccessibilityGroup, etc) within the NSAccessibility protocol that best matches the behavior of the GUI element being rendered. Linux / BSD For GNOME applications, the GNOME Accessibility Impl...
In most cases, it is illegal to access an object of one type as though it were a different type (disregarding cv-qualifiers). Example: float x = 42; int y = reinterpret_cast<int&>(x); The result is undefined behavior. There are some exceptions to this strict aliasing rule: An obj...
The ngPaste directive specifies custom behavior to run when a user pastes content <input ng-paste="paste=true" ng-init="paste=false" placeholder='paste here'> pasted: {{paste}}
Laravel's events allows to implement the Observer pattern. This can be used to send a welcome email to a user whenever they register on your application. New events and listeners can be generated using the artisan command line utility after registering the event and their particular listener in App...
Both #save and #destroy come wrapped in a transaction that ensures that whatever you do in validations or callbacks will happen under its protected cover. So you can use validations to check for values that the transaction depends on or you can raise exceptions in the callbacks to rollback, includin...
Shade is a library developed by OpenStack to simplify interactions with OpenStack clouds, like DreamHost. $ pip install shade
Nesting is probably most often used to create more specific selectors, but it can also be used simply for code organization. Using the @at-root directive, you can ‘jump out’ of where you nest it in your Sass, bringing you back at the top level. Doing this allows you to keep styles grouped without cr...
Using SVG stroke makes it easier to create a Vector drawable with unified stroke length, as per Material Design guidelines: Consistent stroke weights are key to unifying the overall system icon family. Maintain a 2dp width for all stroke instances, including curves, angles, and both interior and ...

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