Tutorial by Examples: l

As we all are aware that PHP writes session data into a file at server side. When a request is made to php script which starts the session via session_start(), PHP locks this session file resulting to block/wait other incoming requests for same session_id to complete, because of which the other requ...

WPF does not support displaying anything other than an image as a splash screen out-of-the-box, so we'll need to create a Window which will serve as a splash screen. We're assuming that we've already created a project containing MainWindow class, which is to be the application main window. First of...

WPF does not support displaying anything other than an image as a splash screen out-of-the-box, so we'll need to create a Window which will serve as a splash screen. We're assuming that we've already created a project containing MainWindow class, which is to be the application main window. First of...

Parameters Nullable type hint was added in PHP 7.1 using the ? operator before the type hint. function f(?string $a) {} function g(string $a) {} f(null); // valid g(null); // TypeError: Argument 1 passed to g() must be of the type string, null given Before PHP 7.1, if a parameter has a typ...

Create the source file for your new Client Script Create a new JavaScript file using your favorite editor or IDE Add the following source code to your file (original source here) /** * A simple "Hello, World!" example of a Client Script. Uses the `pageInit` * event to wr...

Create the source file for your new Client Script Create a new JavaScript file using your favorite editor or IDE Add the following source code to your file (original source here) define([], function () { /** * A simple "Hello, World!" example of a Client Script. U...

Add the following code in you main program. var cpuprofile = flag.String("cpuprofile", "", "write cpu profile `file`") var memprofile = flag.String("memprofile", "", "write memory profile to `file`") func main() { flag.Parse() ...

var memprofile = flag.String("memprofile", "", "write memory profile to `file`") func main() { flag.Parse() if *memprofile != "" { f, err := os.Create(*memprofile) if err != nil { log.Fatal("could not create mem...

// Sets the CPU profiling rate to hz samples per second // If hz <= 0, SetCPUProfileRate turns off profiling runtime.SetCPUProfileRate(hz) // Controls the fraction of goroutine blocking events that are reported in the blocking profile // Rate = 1 includes every blocking event in the profil...

Open a new Query Window with current connection (Ctrl + N) Toggle between opened tabs (Ctrl + Tab) Show/Hide Results pane (Ctrl + R) Execute highlighted query (Ctrl + E) Make selected text uppercase or lowercase (Ctrl + Shift + U, Ctrl + Shift + L) Intellisense list member and complete word (...

Lazy loading modules helps us decrease the startup time. With lazy loading our application does not need to load everything at once, it only needs to load what the user expects to see when the app first loads. Modules that are lazily loaded will only be loaded when the user navigates to their routes...

As an example you want to disable pagination in your default index action and get all results in index. How can you do that? It's simple. You should override the index action in your controller like this: public function actions() { $actions = parent::actions(); unset($actions['index'])...

Create training instances from .arff file private static Instances getDataFromFile(String path) throws Exception{ DataSource source = new DataSource(path); Instances data = source.getDataSet(); if (data.classIndex() == -1){ data.setClassIndex(data.numAttributes()...

The sqlite3 module was written by Gerhard Häring. To use the module, you must first create a Connection object that represents the database. Here the data will be stored in the example.db file: import sqlite3 conn = sqlite3.connect('example.db') You can also supply the special name :memory: to ...

Build the APK First of all we need to build the APK. ionic build --release android Generate private Key Then we will create a keystore to sign the APK. keytool -genkey -v -keystore my-release-key.keystore -alias alias_name -keyalg RSA -keysize 2048 -validity 10000 Change my-release-key with ...

As stated previously, there is no searching capability built in to the Records Browser. Once you've navigated to the appropriate Record Type, if you don't already know a particular field's Internal ID, the easiest way to find it is to use your browser's Find function (usually CTRL+F) to locate the f...

The Required column of the schema indicates whether this field is required to save the record. If this column says true, then you will need to provide a value for this field when saving any record of this type.

The nlapiSubmitField column is a critical piece to understand. This column indicates whether the field is available for inline editing. If nlapiSubmitField is true, then the field can be edited inline. This greatly impacts how this field is handled when trying to use the nlapiSubmitField or record.s...

To jump to a specific line with colon number. To jump to the first line of a file use :1 To jump to line 23 :23

Each React Native component can take a style prop. You can pass it a JavaScript object with CSS-style style properties: <Text style={{color:'red'}}>Red text</Text> This can be inefficient as it has to recreate the object each time the component is rendered. Using a stylesheet is pref...