Tutorial by Examples: an

We will create a simple "Hello World!" app with Angular2 2.4.1 (@NgModule change) with a node.js (expressjs) backend. Prerequisites Node.js v4.x.x or higher npm v3.x.x or higher or yarn Then run npm install -g typescript or yarn global add typescriptto install typescript globally ...

You can pass parameters to the functions in tf.cond() using lambda and the code is as bellow. x = tf.placeholder(tf.float32) y = tf.placeholder(tf.float32) z = tf.placeholder(tf.float32) def fn1(a, b): return tf.mul(a, b) def fn2(a, b): return tf.add(a, b) pred = tf.placeholder(tf....

Enumerating through Keys foreach ($key in $var1.Keys) { $value = $var1[$key] # or $value = $var1.$key } Enumerating through Key-Value Pairs foreach ($keyvaluepair in $var1.GetEnumerator()) { $key1 = $_.Key1 $val1 = $_.Val1 }

func multiply2(item: Int)-> Int { return (item + 2) } let multiply2ToMe = multiply2 // passing the function directly to the function as param print(math.performOperation(inputArray: arrayToBeProcessed, operation: multiply2ToMe)) Output: [3, 5, 7, 9, 11, 13, 10, 8, 6, 4, 102] ...

// function as return type print(math.performComplexOperation(valueOne: 4)(5)) Output: 9

Data types to string formatting Data types like int, float, double, long, boolean can be formatted to string using String.valueOf(). String.valueOf(1); //Output -> "1" String.valueOf(1.0); //Output -> "1.0" String.valueOf(1.2345); //Output -> "1.2345" Stri...

Flask also allows access to a CombinedMultiDict that gives access to both the request.form and request.args attributes under one variable. This example pulls data from a form field name submitted along with the echo field in the query string. Flask Example: from flask import Flask, request app...

.profile is read by most shells on startup, including bash. However, .bash_profile is used for configurations specific to bash. For general initialization code, put it in .profile. If it's specific to bash, use .bash_profile. .profile isn't actually designed for bash specifically, .bash_profile is...

You can't improve something you can't measure. To improve the performance of React components, you should be able to measure it. ReactJS provides with addon tools to measure performance. Import the react-addons-perf module to measure the performance import Perf from 'react-addons-perf' // ES6 var ...

$username = "[email protected]" $pwdTxt = Get-Content "C:\temp\Stored_Password.txt" $securePwd = $pwdTxt | ConvertTo-SecureString $credObject = New-Object System.Management.Automation.PSCredential -ArgumentList $username, $securePwd # Now, $credObject is having the credential...

To install tslint run command npm install -g tslint Tslint is configured via file tslint.json. To initialize default configuration run command tslint --init To check file for possible errors in file run command tslint filename.ts

A synchronous producer-consumer solution ensures that the consumer reads every data item written by the producer exactly one time. Asynchronous solutions allow the consumer to sample the output of the producer. Either the consumer consumes the data faster than it is produced, or the consumer consume...

Some applications may want to create so-called "Fire & Forget" tasks which can be periodically triggered and do not need to return any type of value returned upon completion of the assigned task (for example, purging old temp files, rotating logs, autosaving state). In this example, w...

3.3 Instancing can be done via modifications to how vertex attributes are provided to the vertex shader. This introduces a new way of accessing attribute arrays, allowing them to provide per-instance data that looks like a regular attribute. A single instance represents one object or group of vert...

In order to build a good classifier we will often need to get an idea of how the data is structered in feature space. Weka offers a visualisation module that can help. Some dimensions already seperate the classes quite well. Petal-width orders the concept quite neatly, when compared to petal-widt...

It is often necessary to execute a long-running task and use the result of that task once it has completed. In this example, we will create two classes: One which implements the Callable<T> interface (where T is the type we wish to return), and one which contains a main() method. AsyncValueT...

Let's say we have a String parameter and we want to split it by comma my_param="foo,bar,bash" To split this string by comma we can use; IFS=',' read -r -a array <<< "$my_param" Here, IFS is a special variable called Internal field separator which defines the char...

The most popular operating system for the Raspberry Pi is a Debian based Raspbian. It is officially supported by the Raspberry Pi Foundation. Raspbian can be downloaded from official Raspberry Pi site in one of two variants: With desktop environment Lite- Minimal image Starting September 20...

Terminal Commands: rails g model Product name:string quantity:integer price:decimal{12,2} rake db:migrate Lates create controller. Terminal Commands: rails g controller Products Controller Code: class HistoriesController < ApplicationController def create file = Dir.glob(...

When dealing with large configuration sets of value, it might become quite unhandy to load them one buy one. Option model which comes with asp.net offers a convenient way to map a section to a dotnet poco: For instance, one might hydrate StorageOptions directly from a configuration section b addin...