Tutorial by Examples: am

Configure DNS servers for domain name resolution

File: /etc/resolv.conf contains a list of DNS servers for domain name resolution Sample contents of the file: nameserver 8.8.8.8 # IP address of the primary name server nameserver 8.8.4.4 # IP address of the secondary name server In case internal DNS server you can validate if this server reso...

Parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM

Appearance: "Paamayim Nekudotayim" means "double colon" in Hebrew; thus this error refers to the inappropriate use of the double colon operator (::). The error is typically caused by an attempt to call a static method that is, in fact, not static. Possible Solution: $classname...

Example

Grammar Example (Expr.g4) grammar Expr; prog: (expr NEWLINE)* ; expr: expr ('*'|'/') expr | expr ('+'|'-') expr | INT | '(' expr ')' ; NEWLINE : [\r\n]+ ; INT : [0-9]+ ; Generating the visitor To generate a Visitor, or to disable a visitor for your ...

SQLExample

For querying all the data from table MachineName we can use the command like below one. $Query="Select * from MachineName" $Inst="ServerInstance" $DbName="DatabaseName $UID="User ID" $Password="Password" Invoke-Sqlcmd2 -Serverinstance $Inst -Databa...

Complete example with all styles

//create a new ExcelPackage using (ExcelPackage excelPackage = new ExcelPackage()) { //create the WorkSheet ExcelWorksheet worksheet = excelPackage.Workbook.Worksheets.Add("Sheet 1"); //add some dummy data, note that row and column indexes start at 1 for (int i = 1;...

Complete example with formulas

//create a new ExcelPackage using (ExcelPackage excelPackage = new ExcelPackage()) { //create 2 WorkSheets ExcelWorksheet worksheet = excelPackage.Workbook.Worksheets.Add("Sheet 1"); ExcelWorksheet worksheet2 = excelPackage.Workbook.Worksheets.Add("Sheet 2"); ...

Lambda auto

The data type auto keyword is a convenient way for programmers to declare lambda functions. It helps by shortening the amount of text programmers need to type to declare a function pointer. auto DoThis = [](int a, int b) { return a + b; }; // Do this is of type (int)(*DoThis)(int, int) // e...

Example

ASPX <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt...

Example

<script language="VB" runat="server"> Sub SubmitBtn_Click(sender As Object, e As EventArgs) Label1.Text = "Text1.Text = " & Text1.Text End Sub </script> <h3><font face="Verdana">TextBox Sample</...

Example

Basic KatanaConsole Application namespace KatanaConsole { // use an alias for the OWIN AppFunc: using AppFunc = Func<IDictionary<string, object>, Task>; class Program { static void Main(string[] args) { WebApp.Start<Startup>(&...

Show a div from same page as message

This a sample code which will show you how you can create dynamic code which will generate a bootstrap model at run time. This also includes deciding modal title body content and buttons in footer. HTML code <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css&...

Sending Downstream Messages via cURL

You can test sending messages using the FCM REST API by sending a request through cURL. curl --header "Authorization: key=<API_KEY>" \ --header Content-Type:"application/json" \ https://fcm.googleapis.com/fcm/send \ -d "{\"registration_ids...

Example: Consider will have two threads T1 and T2.

How do you detect them? If the same variable/resource/memory location is accessible by multiple threads and at least of the thread is changing the value of variable/resource/memory location, then Race Condition can occurred. Because if a thread is changing the value of variable/resource/memory ...

IOS 10 Permission required for accessing Camera, Photo library ....

iOS 10 Now Requires User Permission to Access Media Library, Photos, Camera and other Hardware like these. The solution for this is to add their keys into info.plist with description for user that how we are using their data , iOS already required permissions to access microphone, camera, and m...

Query a connection object without parameters

Use may now use the connExecute-Function for executing a query. You have the option to get the query result as an object or array. The result ist printed to console.log. function connExecute(err, connection) { if (err) { console.error(err.message); return; } sql = ...

Make a module that exports a default any

For more complicated projects, or in cases where you intend to gradually type a dependency, it may be cleaner to create a module. Using JQuery (although it does have typings available) as an example: // place in jquery.d.ts declare let $: any; export default $; And then in any file in your pr...

Use an ambient module

If you just want to indicate the intent of an import (so you don't want to declare a global) but don't wish to bother with any explicit definitions, you can import an ambient module. // in a declarations file (like declarations.d.ts) declare module "jquery"; // note that there are no ...

Hello World example

This example combines Custom Element, Template, Shadow DOM and HTML Import to display a the "Hello, World!" string in HTML. In file hello-world.html: <!-- 1. Define the template --> <template> Hello, World! </template> <script> var template = document....

Modal Basic Example

import React, { Component } from 'react'; import { Modal, Text, View, Button, StyleSheet, } from 'react-native'; const styles = StyleSheet.create({ mainContainer: { marginTop: 22, }, modalContainer: { marginTop: 22, }, }); class Example extends Component...

Free (Reader x) ~~ Reader (Stream x)

Given data Reader x a = Reader (x -> a) we have data Free (Reader x) a = Pure a | Free (x -> Free (Reader x) a) which is isomorphic to data Demand x a = Satisfied a | Hungry (x -> Demand x a) or equivalently Stream x -> a with data Stream x = Stream x...

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