Tutorial by Examples: et

Write to single file

Write all events with level: debug, info, warn, error and fatal to one file: <?xml version="1.0" ?> <nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <targets> &lt...

nlog • Write logs to files

Create custom Target

using NLog; using NLog.Config; using NLog.Targets; namespace MyNamespace { [Target("MyFirst")] public sealed class MyFirstTarget: TargetWithLayout //or inherit from Target { public MyFirstTarget() { //set defaults ...

nlog • Extending NLog

Detecting Negative Cycle in a Graph

To understand this example, it is recommended to have a brief idea about Bellman-Ford algorithm which can be found here Using Bellman-Ford algorithm, we can detect if there is a negative cycle in our graph. We know that, to find out the shortest path, we need to relax all the edges of the graph (V-...

algorithm • Bellman–Ford Algorithm

Installation or Setup

This would be a basic setup in wich we will send all the log messages to the console and to a log file. Let's start with the libraries. Will use maven for that: <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-api</artifact...

log4j2 • Getting started with log4j2

After Submit: Determine whether a field was changed

After the record gets stored in the database, we want to inspect what was changed on the record. We'll do this inspection by comparing values between the old and new record instances. // 1.0, Revealing Module pattern var myNamespace = myNamespace || {}; myNamespace.example = (function () { ...

netsuite • User Event: Before and After Submit events

Installation or Setup

Detailed instructions on getting iOS 10 set up or installed.

ios10 • Getting started with ios10

Collect google spreadsheet data into pandas dataframe

Sometimes we need to collect data from google spreadsheets. We can use gspread and oauth2client libraries to collect data from google spreadsheets. Here is a example to collect data: Code: from __future__ import print_function import gspread from oauth2client.client import SignedJwtAssertionCred...

pandas • Reading files into pandas DataFrame

Get current page title

lib.pagetitle = TEXT lib.pagetitle.data = page : title

typo3 • TypoScript

Understanding the transpose function: t()

Overview The transpose function is one of Bosun's more powerful functions, but it also takes effort to understand. It is powerful because it lets us alert at different levels than the tag structure of the underlying data. Transpose changes the scope of your alert. This lets you scope things into l...

Bosun • Alerts: Advanced Scoping

Finding the Shortest Path from Source to other Nodes

Breadth-first-search (BFS) is an algorithm for traversing or searching tree or graph data structures. It starts at the tree root (or some arbitrary node of a graph, sometimes referred to as a 'search key') and explores the neighbor nodes first, before moving to the next level neighbors. BFS was inve...

algorithm • Breadth-First Search

Installation or Setup

Detailed instructions on getting actionscript set up or installed.

actionscript • Getting started with actionscript

Const Correct Function Parameters

In a const-correct function, all passed-by-reference parameters are marked as const unless the function directly or indirectly modifies them, preventing the programmer from inadvertently changing something they didn't mean to change. This allows the function to take both const and non-cv-qualified ...

C++ • Const Correctness

Master - Slave Replication Setup

Consider 2 MySQL Servers for replication setup, one is a Master and the other is a Slave. We are going to configure the Master that it should keep a log of every action performed on it. We are going to configure the Slave server that it should look at the log on the Master and whenever changes happ...

MySQL • Replication

Vaadin Maven Setup

Common Maven mvn -B archetype:generate -DarchetypeGroupId=com.vaadin -DarchetypeArtifactId=vaadin- archetype-application -DarchetypeVersion=7.7.3 -DgroupId=org.test -DartifactId=vaadin-app -Dversion=1.0-SNAPSHOT Advanced Maven mvn archetype:generate \ -DgroupId=com.mycompany.mycompanyapp...

vaadin • Vaadin and Maven

Objective C code to make selected corner of a UiView rounded

First import #import <QuartzCore/QuartzCore.h> into your ViewController class. Here is how I set my view in code UIView *view1=[[UIView alloc]init]; view1.backgroundColor=[UIColor colorWithRed:255/255.0 green:193/255.0 blue:72/255.0 alpha:1.0]; CGRect view1Frame = view1.frame; view1Frame....

iOS • Make selective UIView corners rounded

Objective C code to convert HTML string to NSAttributedString and Vice Versa

HTML to NSAttributedString conversion Code :- //HTML String NSString *htmlString=[[NSString alloc]initWithFormat:@"<!DOCTYPE html><html><body><h1>My First Heading</h1><p>My first paragraph.</p></body></html>"]; //Converting HTML s...

iOS • Convert HTML to NSAttributed string and vice verse

Bucket Sort Basic Information

Bucket Sort is a sorting algorithm in which elements of input array are distributed in buckets. After distributing all the elements, buckets are sorted individually by another sorting algorithm. Sometimes it is also sorted by recursive method. Pseudo code for Bucket Sort Let n be the length of t...

algorithm • Bucket Sort

Setting place type filters for PlaceAutocomplete

In some scenarios, we might want to narrow down the results being shown by PlaceAutocomplete to a specific country or maybe to show only Regions. This can be achieved by setting an AutocompleteFilter on the intent. For example, if I want to look only for places of type REGION and only belonging to I...

Android • Android Places API

Setting the default Encoding for IO

# encode/decode UTF-8 for files and standard input/output use open qw( :encoding(UTF-8) :std ); This pragma changes the default mode of reading and writing text ( files, standard input, standard output, and standard error ) to UTF-8, which is typically what you want when writing new application...

Perl Language • File I/O (reading and writing files)

Case conversion methods

to_upper(): #include <iostream> #include <string> #include <boost/algorithm/string.hpp> using namespace std; int main() { // String to convert characters to uppercase string str = "ThIS iS SUpPoSEd tO Be UpPeR CAsE."; // Convert characters i...

boost • boost String Algorithms Library