Tutorial by Examples: re

Sometimes we need to determine some aspects of the print request. We will call them attribute. Are examples of print request attributes: amount of copies (1, 2 etc), orientation (portrait or landscape) chromacity (monochrome, color) quality (draft, normal, high) sides (one-sided, two-sided e...

$logger = $container->get('logger'); This will fetch the service with the service ID "logger" from the container, an object that implements Psr\Log\LoggerInterface.

##= # The variable $Bit will hold either 64 or 32 depending on system architecture # This is used with all the ${Service::} macros # Use this in the beginning of your code. # This snippet should only be used once. # Var Bit System::Call "kernel32::GetCurrentProcess()i.s" System::C...

##= #= Service::Remove # # USAGE: # ${Service::Remove} "NAME" /DISABLEFSR $0 $1 # # ::Remove = Deletes a service entry from the registry. # NAME = The Service name # /DISABLEFSR = Disables redirection if x64. Use "" to skip. # $0 = Return...

Reduce is a function which will take an array, function and accumulator and use accumulator as seed to start the iteration with the first element to give next accumulator and the iteration continues for all the elements in the array (refer below example) defmodule MyList do def reduce([], _func,...

Let's assume we have a search results page that displays a user's search query back to them. The code below is an example of how this could be done in PHP: Results for "<?php echo $_GET['query'] ?>" For this to work, you would access the page with a URL like: https://yoursite.te...

In this example, we take a sine curve plot and add more features to it; namely the title, axis labels, title, axis ticks, grid and legend. # Plotting tutorials in Python # Enhancing a plot import numpy as np import matplotlib.pyplot as plt x = np.linspace(0, 2.0*np.pi, 101) y = np.sin(x) ...

In this example, a sine curve and a cosine curve are plotted in the same figure by superimposing the plots on top of each other. # Plotting tutorials in Python # Adding Multiple plots by superimposition # Good for plots sharing similar x, y limits # Using single plot command and legend import...

Similar to the previous example, here, a sine and a cosine curve are plotted on the same figure using separate plot commands. This is more Pythonic and can be used to get separate handles for each plot. # Plotting tutorials in Python # Adding Multiple plots by superimposition # Good for plots sha...

Many custom views need to accept user interaction in the form of touch events. You can get access to touch events by overriding onTouchEvent. There are a number of actions you can filter out. The main ones are ACTION_DOWN: This is triggered once when your finger first touches the view. ACTION_MO...

ImageMagick includes a number of command-line utilities for manipulating images. Here we will use compare command-line tool. compare tool is very useful. Suppose you want to test (e.g. layout, color, icons etc.) the difference between your expected design UI HTML file with actual result of JSP...

In xcode developers can pause/break the execution of running app and can examine the state of program. Here's how to pause running programs: Just open any file in which we want to put breakpoint and click on the line on gutter at left side where we want to pause execution. So here we placed bre...

As recently Apple rolled out iOS11 and Xcode-9, we can now debug apps on devices without connecting devices to Xcode through USB. We can take advantage of wireless debugging feature added to this Xcode-9. To enable wireless debugging, we have to configure some steps in Xcode. 1 First connect the ...

#include <threads.h> #include <stdio.h> int run(void *arg) { printf("Hello world of C11 threads."); return 0; } int main(int argc, const char *argv[]) { thrd_t thread; int result; thrd_create(&thread, run, NULL); thrd_join(&...

The problem statement is like if we are given two string str1 and str2 then how many minimum number of operations can be performed on the str1 that it gets converted to str2.The Operations can be: Insert Remove Replace For Example Input: str1 = "geek", str2 = "gesek" Ou...

In order to trigger a "upgradeneeded" event you need to request the database with version higher than the current version - otherwise the event won't be triggered. function createTable(dbName, dbversion, tableName) { var request = indexedDB.open(dbName, dbversion); request.onupgrade...

This is a more generic solution applicable in system where the user has option to add indexes to the table that he uses: function createTable(dbName, tableName) { var request = indexedDB.open(dbName); request.onsuccess = function (e){ var database = e.target.result; var version = p...

Suppose we have this source file that we would like to split: cat -n sourcefile 1 On the Ning Nang Nong 2 Where the Cows go Bong! 3 and the monkeys all say BOO! 4 There's a Nong Nang Ning 5 Where the trees go Ping! 6 And the tea pots jibber jabber joo. 7 On the Nong Ning Nang Comma...

Snippet from MainPage.xaml <Page x:Class="MyNewApp.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:MyNewApp" xmlns:d="http...

Resource dictionaries are accessible only inside the context they were declared, so if we intended to reference resources that are declared in one page context from another page they will not be found. So if we need global resources to be defined like the ones that comes with the framework we do it ...