Tutorial by Examples: ed

Nginx configuration to detect request from mobile user-agent and redirect them to mobile site. location / { #mobile site handling as per user agent set $mobile_rewrite do_not_perform; // variable to store action. default set to not perform redirection to mobile site. if ($htt...
This uses the Dropbox Java SDK to download a file from the Dropbox API at the remote path /Homework/math/Prime_Numbers.txt to the local file Prime_Numbers.txt: String localPath = "Prime_Numbers.txt"; OutputStream outputStream = new FileOutputStream(localPath); FileMetadata metadata = cl...
Doubly Linked Lists are a type of linked list. A doubly linked list's nodes have two "pointers" to other nodes, "next" and "previous." It is called a double linked list because each node only has two "pointers" to other nodes. A doubly linked list may have a h...
// Set up Express var express = require('express'); var app = express(); // Serve static assets from both 'public' and 'files' directory app.use(express.static('public'); app.use(express.static('files'); // Start Express server app.listen(3030);
Two of the most fundamental higher-order functions included in the standard library are map and filter. These functions are generic and can operate on any iterable. In particular, they are well-suited for computations on arrays. Suppose we have a dataset of schools. Each school teaches a particular...
Here is the JSON Structure we are going to use. { "employees": [ { "firstName": "John", "lastName": "Doe", "skills": [ { "name": "javascript", "rating&quo...
You can read texture data with function glGetTexImage: char *outBuffer = malloc(buf_size); glActiveTexture(GL_TEXTURE0); glBindTexture(GL_TEXTURE_2D, texture); glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, outBuffer); ...
When you try to restore database from another server you might get the following error: Error 3154: The backup set holds a backup of a database other than the existing database. In that case you should use WITH REPLACE option to replace database with the database from backup: RESTORE DATABAS...
The Same Database reference allows you to split a single database into multiple projects. This is useful for cases where a project is very large or where different teams manage different parts of the database. If you consider that you have two .sqlproj SSDT database projects with the following stru...
(* The block comment syntax allows nested comments (* whether or not this is a good thing is probably a matter of personal opinion (*or coding standards*)*)*) val _ = print "Nested comment example\n" (* line ending block comment *)
Operators that bound tighter (higher precedence) are listed first. OperatorsPrecedence group (≥3.0)PrecedenceAssociativity.∞left?, !, ++, --, [], (), {}(postfix)!, ~, +, -, ++, --(prefix)~> (swift ≤2.3)255left<<, >>BitwiseShiftPrecedence160none*, /, %, &, &*MultiplicationPrec...
You can create unlogged tables so that you can make the tables considerably faster. Unlogged table skips writing write-ahead log which means it's not crash-safe and unable to replicate. CREATE UNLOGGED TABLE person ( person_id BIGINT NOT NULL PRIMARY KEY, last_name VARCHAR(255) NOT NULL, ...
The HTTP response status code 301 Moved Permanently is used for permanent URL redirection, meaning current links or records using the URL that the response is received for should be updated. The new URL should be provided in the Location field included with the response. The 301 redirect is consider...
Sometimes it may be required to find out which directory consuming how much disk space especially when you are used df -h and realized your available disk space is low. du: du command summarizes disk usage of the set of FILEs, recursively for directories. It's often uses with -sh option: -s, --s...
It's easiest to show a binary search on numbers using pseudo-code int array[1000] = { sorted list of numbers }; int N = 100; // number of entries in search space; int high, low, mid; // our temporaries int x; // value to search for low = 0; high = N -1; while(low < high) { mid = (...
Cannot add Integer and Real* - 5 + 1.0; stdIn:1.2-10.4 Error: operator and operand don't agree [overload conflict] operator domain: [+ ty] * [+ ty] operand: [+ ty] * real in expression: 5 + 1.0
Installation Additional dependencies are required for Redis support. Install both Celery and the dependencies in one go using the celery[redis] bundle: $ pip install -U celery[redis] Configuration Configure the location of your Redis database: BROKER_URL = 'redis://localhost:6379/0' The UR...
Case 1: While using in the place of method arguments. If a method requires an object of wrapper class as argument.Then interchangeably the argument can be passed a variable of the respective primitive type and vice versa. Example: int i; Integer j; void ex_method(Integer i)//Is a valid statem...
A TabbedPage is similar to a NavigationPage in that it allows for and manages simple navigation between several child Page objects. The difference is that generally speaking, each platform displays some sort of bar at the top or bottom of the screen that displays most, if not all, of the availabl...
Create managed bean To create a manage bean you need the annotation @ManagedBean for example: @ManagedBean public class Example {} You need the package: import javax.faces.bean.ManagedBean; Managed bean Scope We use annotations to define the scope in which the bean will be stored. There...

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