Tutorial by Examples: s

Detailed instructions on getting twitter-oauth set up or installed.

with q command we could simplify a lot of tedious work in vim. example 1. generate array sequence (1 to 20). STEP 1. press i to enter insert mode, input 1 1 STEP 2. Record following action: "append the last number to the next line, and increment the number" type esc to exit input...

import scala.reflect.runtime.universe._ val mirror = runtimeMirror(getClass.getClassLoader) val module = mirror.staticModule("org.data.TempClass")

ActiveRecord pattern was popularized by Rails. It's the default ORM there. Conventions Rails ActiveRecord is driven by conventions: class names are mapped to table names, field names are mapped to field names, foreign and primary keys should be named accordingly. These conventions can be overridde...

The following command backs up the 'Users' database to 'D:\DB_Backup' file. Its better to not give an extension. BACKUP DATABASE Users TO DISK = 'D:\DB_Backup'

The following command restores the 'Users' database from 'D:\DB_Backup' file. RESTORE DATABASE Users FROM DISK = 'D:\DB_Backup'

Following example also have explanation required for understanding example within it. import java.time.Clock; import java.time.Duration; import java.time.Instant; import java.time.LocalDate; import java.time.LocalDateTime; import java.time.LocalTime; import java.time.ZoneId; import java.time...

First of all you need to have IIS (Internet Information Services) installed and running on your machine; IIS isn't available by default, you have to add the characteristic from Control Panel -> Programs -> Windows Characteristics. Download the PHP version you like from http://windows.php.ne...

You may often find the need to get the auto incremented ID value for a row that you have just inserted into your database table. You can achieve this with the lastInsertId() method. // 1. Basic connection opening (for MySQL) $host = 'localhost'; $database = 'foo'; $user = 'root' $password = ''...

The find function First let's take a look at the string.find function in general: The function string.find (s, substr [, init [, plain]]) returns the start and end index of a substring if found, and nil otherwise, starting at the index init if it is provided (defaults to 1). ("Hello, I am a ...

do not confuse with the string.sub function, which returns a substring! How it works string argument ("hello world"):gsub("o", "0") --> returns "hell0 w0rld", 2 -- the 2 means that 2 substrings have been replaced (the 2 Os) ("hello worl...

Detailed instructions on getting odata set up or installed.

Detailed instructions on getting opengl-es set up or installed.

Julia has a built-in implementation of semantic versioning exposed through the VersionNumber type. To construct a VersionNumber as a literal, the @v_str string macro can be used: julia> vers = v"1.2.0" v"1.2.0" Alternatively, one can call the VersionNumber constructor; n...

The Compat.jl package enables using some new Julia features and syntax with older versions of Julia. Its features are documented on its README, but a summary of useful applications is given below. 0.5.0 Unified String type In Julia v0.4, there were many different types of strings. This system was...

NSArray *aryFName = @[ @"Alice", @"Bob", @"Charlie", @"Quentin" ]; NSArray *aryLName = @[ @"Smith", @"Jones", @"Smith", @"Alberts" ]; NSArray *aryAge = @[ @24, @27, @33, @31 ]; //Create a Custom class with prope...

A struct is a sequence of named elements, called fields, each of which has a name and a type. Empty struct has no fields, like this anonymous empty struct: var s struct{} Or like this named empty struct type: type T struct{} The interesting thing about the empty struct is that, its size is z...

For example you want to use surfaceView in ng2-nativescript. As we don't have surfaceView in nativescript we should use placeholder. first we should import the requirements: import {Component} from "@angular/core"; import placeholder = require("ui/placeholder"); let applicat...

app.component.ts: import {Component,OnInit} from "@angular/core"; import placeholder = require("ui/placeholder"); let application= require("application"); @Component({ selector: "my-app", templateUrl: "app.component.html", }) export...

If the SQL statement is constructed like this: SQL = "SELECT * FROM Users WHERE username = '" + user + "' AND password ='" + pw + "'"; db.execute(SQL); Then a hacker could retrieve your data by giving a password like pw' or '1'='1; the resulting SQL statement will ...