Tutorial by Examples: r

Sometimes you need to set the same data in many of your views. Using View::share // "View" is the View Facade View::share('shareddata', $data); After this, the contents of $data will be available in all views under the name $shareddata. View::share is typically called in a service p...
- (UIImage *)drawImageBySize:(CGSize)size quality:(CGInterpolationQuality)quality { UIGraphicsBeginImageContextWithOptions(size, NO, 0.0); CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetInterpolationQuality(context, quality); [self drawInRect: CGRectMake (0, 0...
We can add adaptivity to any subclass of UIView which we add on view controller in nib file. Lets take an example of adding adaptivity using size classes to a view. Add a view on view controller as: Now we need to pin this view to it's superview for fixing it's size and position using con...
Asynchronous validators allows you to validate form information against your backend (using $http). These kind of validators are needed when you need to access server stored information you can't have on your client for various reasons, such as the users table and other database information. To us...
Pandas don't support missing in attributes of type integer. For example if you have missings in the grade column: df= pd.read_csv("data.csv", dtype={'grade': int}) error: Integer column has NA values In this case you just should use float instead of integers or set the object dtype. ...
Below is and HTML page <html> <head> <title>Select Example by Index value</title> </head> <body> <select name="Travel"><option value="0" selected> Please select</option> <option value="1">Car</option&...
A minimal Flask application looks something like this: from flask import Flask app = Flask(__name__) @app.route("/") def index(): return "Hello World!" A large Flask application can separate one file into multiple files by blueprints. Purpose Make it easier for ...
Go to Main.cs file in iOS project and change existed code, like presented below: static void Main(string[] args) { try { UIApplication.Main(args, null, "AppDelegate"); } catch (Exception ex) { Debug.WriteLine(...
let doc = require('dynamodb-doc'); let dynamo = new doc.DynamoDB(); var tblName = "MyTable"; exports.handler = (event, context, callback) => { readOperation(context); } function readOperation(cnxt) { var params = { TableName: tblName, Key: { "id": ...
By default, the url property is not defined. Calling fetch() (while using the default Backbone.sync) will result in a GET request to the results of url. var Users = Backbone.Collection.extend({ url: '/api/users', // or url: function () { return '/api/users' } }); va...
By default, the urlRoot property is not defined. This urlRoot property is used by the url method to create a relative URL where the model's resource would be located on the server. var User = Backbone.Model.extend({ urlRoot: '/api/users', // or urlRoot: function () { return '/...
Model.url and Collection.url are only used internally by the default Backbone.sync method. The default method assumes you are tying into a RESTful API. If you are using a different endpoint design, you will want to override the sync method and may want utilize the url method. var Model = Backbone.M...
class MySubClass(np.ndarray): def __new__(cls, input_array, info=None): obj = np.asarray(input_array).view(cls) obj.info = info return obj def __array_finalize__(self, obj): # handles MySubClass(...) if obj is None: pass ...
Sometimes a component needs to render some data from a remote endpoint (e.g. a REST API). A standard practice is to make such calls in componentDidMount method. Here is an example, using superagent as AJAX helper: import React from 'react' import request from 'superagent' class App extends Rea...
Things are easy when you have to use a C++ library in a Python project. Just you can use Boost. First of all here is a list of components you need: A CMakeList.txt file, because you're going to use CMake. The C++ files of the C++ project. The python file - this is your python project. Let's...
Checking Requirements Run bin/symfony_requirements for checking symfony requirements and php cli setting. Install all packages that needed to run a symfony project. Setting your php.ini for example setting timezone and short_open_tag. Setting both php.ini for your php webserver (eg: /etc/php/apache...
<div class="container"> <h2>Alerts</h2> <div class="alert alert-success"> <strong>Success!</strong> </div> <div class="alert alert-info"> <strong>Info!</strong> </div> <div ...
The .fade and .in classes adds a fading effect when closing the alert message. <div class="alert alert-success fade in"> <a href="#" class="close" data-dismiss="alert" aria-label="close">×</a> <strong>Succ...
using System; using System.Collections.Generic; using System.Runtime.InteropServices; using System.Threading.Tasks; using System.Windows; using System.Windows.Controls; using System.Windows.Interactivity; using System.Windows.Media; using System.Windows.Media.Imaging; namespace MyBehavior...
Before understand require to follow some setup for project integrate with firebase. Create your project in Firebase Console and download google-service.json file from console and put it in app level module of your project, Follow link for Create Project in console After this we require to...

Page 669 of 1016