Tutorial by Examples: od

In Pharo everything is an object, and every object responds to messages. So if you evaluate the following code Object subclass: #MyClass the object Object will create for you its subclass called MyClass. If you don't have any particular superclass in your mind it's advised to subclass from Objec...

struct tree{ int a; tree* right; tree* left; }; tree* root=NULL; void insert(tree*& in, int b){ if(in){ if(in->a<b) insert(in->right,b); else if(in->a>b) insert(in->left,b); ...

What is Kibana: Kibana is used for making visualizations and creating dashboards for the indexes presented in elasticsearch. Basically, it is an open source plug-in for elasticsearch. There are Six Tabs: Discover: You can explore your data from Discover tab Visulization: Creating v...

Glass.Mapper.Sc allows you to move your data from Sitecore and into your code seamlessly using strongly typed objects. The framework allows you to map data on to c# classes and interfaces without any additional mark-up. As the data is mapped to your target objects it is converted to the target type...

You can create a Sequential model by passing a list of layer instances to the constructor: from keras.models import Sequential from keras.layers import Dense, Activation model = Sequential([ Dense(32, input_dim=784), Activation('relu'), Dense(10), Activation('softmax'), ]) ...

PDO::setAttribute sets an attribute on the database handle. Desctiption of setAttribute is: public bool PDO::setAttribute ( int $attribute , mixed $value ) PDO::ATTR_ERRMODE: This attribute is used for error reporting. It can have one of the following values. PDO::ERRMODE_SILENT: If the ATTR...

# Print the working directory import os print os.getcwd() # C:\Python27\Scripts # Set the working directory os.chdir('C:/Users/general1/Documents/simple Python files') print os.getcwd() # C:\Users\general1\Documents\simple Python files # load pandas import pandas as pd # read a csv d...

/* In all versions of Progress ABL you can write multi line comments */ /* They can also span a single line */ //Starting with version 11.6 you can also write single line comments //Can you nest single line comments? //Yes you can string = "HELLO". //A single line comme...

Let's say we have a model called product. class Product(models.Model): name = models.CharField(max_length=100) price = models.IntegerField() Now we are going to declare a model serializers for this model. from rest_framework.serializers import ModelSerializer class ProductSerialize...

Declare @Text nvarchar(max) Declare @Value int SET @Text = 'Text' SET @Value = 0

1. Fetching the JSON response for last modified (latest) artifact latestArtifactUriResponse=curl -u username:password --silent https://hostname.com/artifactory/api/storage/<repo_name>/<folder_name>/?lastModified | grep uri | awk '{ print $3 }' | sed s/\"//g | sed s/,//g It will ...

Having local Class = {} Class.__meta = {__index=Class} function Class.new() return setmetatable({}, Class.__meta) Assuming we want to change the behavior of a single instance object = Class.new() using a metatable, there are a few mistakes to avoid: setmetatable(object, {__call = table.conca...

A lambda needs a handler, which will serve as the entry point to your application. Every handler needs to implement interface RequestHandler<I, O> where I is the input type and O is the output type. The input type is then passed to the handleRequest() method and the method returns the output t...

A lambda needs a handler, which will serve as the entry point to your application. In the simplest case, you get your input from the context and pass the result using the callback() function: exports.handler = (event, context, callback) => { callback(null, 'You sent ' + event.number); };

If you have successfully deployed the Lambda, you can also test it directly in the GUI. When you click the blue Test button for the first time, it presents you with a creation of a new test event. If you are testing the Java code from the Basic Lambda code in Java example, delete the whole body and...

Django Model Form with Django Class Based view is a classic way of building pages to do create/update operations in django application quickly. Within the form we can put methods to execute tasks. Its a cleaner way to put tasks in forms rather than putting in views/models. To give an example using ...

Ubuntu: $ cat /proc/cpuinfo Sample Output: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz stepping : 11 cpu MHz : 1596.000 cache size : 4096 KB physical id : 0 siblings ...

GameScene code example: import SpriteKit protocol GameViewControllerDelegate: class { func callMethod(inputProperty:String) } class GameScene: SKScene { weak var gameViewControllerDelegate:GameViewControllerDelegate? override func didMove(to view: SKView) { gameViewContro...

Open Function.cs and replace the class code with the following: public class Function { /// <summary> /// A simple function that takes a birth date and returns Age in years /// </summary> /// <param name="input"></param> /// <returns>Age is years&...

Paste this snippet somewhere in the http {} Block; or place it in it's own file in the /etc/nginx/conf.d/ folder. Also see the official docs for logging to syslog. # # Access Log # log_format fmt_syslog '[$time_local] $status $remote_addr $http_host "$request" $body_bytes_sent $reque...