Tutorial by Examples: v

Tuples are frequently used for multiple return values. Much of the standard library, including two of the functions of the iterable interface (next and done), returns tuples containing two related but distinct values. The parentheses around tuples can be omitted in certain situations, making multip...

The IIF statement can be used in expressions to screen for division by zero: =IIF(Fields!PossibleZero.Value=0,0,Fields!Denominator.Value/IIF(Fields!PossibleZero.Value=0,1,Fields!PossibleZero.Value)) SSRS does not short circuit IIF arguments. Therefore, using a single IIF function to screen for ...

svn2git is a Ruby wrapper around git's native SVN support through git-svn, helping you with migrating projects from Subversion to Git, keeping history (incl. trunk, tags and branches history). Examples To migrate a svn repository with the standard layout (ie. branches, tags and trunk at the root l...

The simplest manner of defining custom behavior for individual routes would be fairly easy. In this example we use it to authenticate a user : 1) routes.js: create a new property (like requireAuth) for any desired route angular.module('yourApp').config(['$routeProvider', function($routeProvider) ...

Floating point Numbers can be formatted as a decimal number using String.format with 'f' flag //Two digits in fracttional part are rounded String format1 = String.format("%.2f", 1.2399); System.out.println(format1); // "1.24" // three digits in fractional pa...

This example shows how to take image and display it correctly on the Android device. Firstly we have to create sample application with one button and one imageview. Once user clicks on the button camera is launched and after user selects picture it will be displayed with the proper orientation on ...

import tensorflow as tf filename_queue = tf.train.string_input_producer(["file.csv"], num_epochs=1) reader = tf.TextLineReader() key, value = reader.read(filename_queue) col1, col2 = tf.decode_csv(value, record_defaults=[[0], [0]]) with tf.Session() as sess: sess.run(tf.initializ...

To be able do deal with form events, it's important to attach the request, that is send to a controller action after submitting a form, to the form created in that action. public function registerAction(Request $request) { $data = new ExampleObject(); $form = $this->createForm(Example...

By default the ArrayAdapter creates a view for each array item by calling toString() on each item and placing the contents in a TextView. Example: ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, myStringArray); where androi...

To do that, [download][1] a required amCharts product ZIP archive. Unzip it and place somewhere on your web server. I.e. in /amcharts/ sub-directory. Then simply load them using <script> tags: <script src="amcharts/amcharts.js"></script> <script src="amcharts/...

sed -i -e cmd file will modify file even if its permissions are set to read-only. This command behaves similarly to sed -e cmd file > tmp; mv -f tmp file rather than sed -e cmd file > tmp; cat tmp > file; rm tmp The following example uses gnu sed: $ echo 'Extremely important data' &gt...

printf will output a formatted string using placeholders sprintf will return the formatted string $name = 'Jeff'; // The `%s` tells PHP to expect a string // ↓ `%s` is replaced by ↓ printf("Hello %s, How's it going?", $name); #> Hello Jeff, How's it going? // Ins...

There are a number of available routing verbs in Sinatra, they correspond directly to http verbs get '/' do .. get some data, a view, json, etc .. end post '/' do .. create a resource .. end put '/' do .. replace a resource .. end patch '/' do .. change a resource .. end ...

File.Move In order to move a file from one location to another, one simple line of code can achieve this: File.Move(@"C:\TemporaryFile.txt", @"C:\TemporaryFiles\TemporaryFile.txt"); However, there are many things that could go wrong with this simple operation. For instance, wh...

Add the necessary dependencies to the project POM (mybatis, and mybatis-spring): <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>x.x.x</version> </dependency> <dependency> <group...

VI snippets are like Screenshots of a Block Diagram, with one important difference. They can be opened in LabVIEW to reconstruct the orginal program. They are saved in the common .PNG format so they can be used like normal pictures e.g. in forums and on StackOverflow. To create a VI snippet mark th...

Let's say that you have exam scores for several exams and you want to divide them into quartiles per exam. -- Setup data: declare @values table(Id int identity(1,1) primary key, [Value] float, ExamId int) insert into @values ([Value], ExamId) values (65, 1), (40, 1), (99, 1), (100, 1), (90, 1), ...

If you are using UIViewControllerContainment there are a few other methods that are worth looking at. When you want a child viewController to control the presentation of the status bar (i.e. if the child is positioned at the top of the screen in Swift class RootViewController: UIViewController { ...

Install serverless globally npm install serverless -g Create an AWS Lamdba function in Node.js serverless create --template aws-nodejs Example of a handler.js 'use strict'; // Your first function handler module.exports.hello = (event, context, cb) => cb(null, { message: 'Go Server...

For one filter: Here is where the query is created, it receives a expression parameter and a filter. private static Expression GetExpression<T>(ParameterExpression param, QueryFilter queryFilter) { // Represents accessing a field or property, so here we are accessing for example: ...