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Install Xcode from the App Store. Install the Xcode developer tools > xcode-select --install This will provide basic command line tools such as gcc and make Install Mac Ports https://www.macports.org/install.php The OSX Sierra install package will provide an open-source method of ...

String are identified as a contiguous set of characters represented in the quotation marks. Python allows for either pairs of single or double quotes. Strings are immutable sequence data type, i.e each time one makes any changes to a string, completely new string object is created. a_str = 'Hello ...

In the following, weight is declared as a mutable field. type person = { name: string; mutable weight: int };; Remark: As far as design is concerned here, one would consider the fact that a person's name isn't likely to change, but their weight is.

Initializing a record with mutable fields isn't different from a regular record initialization. let john = { name = "John"; weight = 115 };;

To assign a new value to a mutable record field, use the <- operator. john.weight <- 120;; Note: The previous expression has a unit type.

Starting with version 2.7 ElementTree has a better support for XPath queries. XPath is a syntax to enable you to navigate through an xml like SQL is used to search through a database. Both find and findall functions support XPath. The xml below will be used for this example <Catalog> &l...

On the machine where you'd like to make the backup, jump to the Redis CLI: redis-cli Password? If your master Redis DB (the one you want to replicate) has a password: config set masterauth <password> Start replication Run the following to begin replication: SLAVEOF <host> <...

This example is used in specifying options that might not be included in a database of available housing and its attendant amenities. It builds on the previous example, with some differences: Two procedures are no longer necessary for a single combo box, done by combining the code into a single ...

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More information needed. A cryptographic hash function is a member of a class of functions with three vital properties; consistency, uniqueness, and irreversibility. Consistency: Given the same data, a hash function will always return the same value. That is, if X = Y, f(x) will always equal f(y) ...

navigator.mediaDevices is the common method adapted in Chrome and FF to getUserMedia as of now. A promised based call back which returns local stream on success navigator.mediaDevices.getUserMedia({ audio: true, video: true }) .then(stream => { // attach this stream to window obje...

GTKWave is a fully feature graphical viewing package that supports several graphical data storage standards, but it also happens to support VCD, which is the format that vvp will output. So, to pick up GTKWave, you have a couple options Goto http://gtkwave.sourceforge.net/gtkwave.zip and downloa...

This example uses Icarus and GTKWave. Installation instructions for those tools on OSx are provided elsewhere on this page. Lets begin with the module design. This module is a BCD to 7 segment display. I have coded the design in an obtuse way simply to give us something that is easily broken and...

You should create functions in a controller like insert, update, delete, and clear cart etc. eg : for insert new item in cart write below code that accepts value. $cartItem = array( 'id' => 'MOTOG5', 'qty' => 5, 'price' => 100.99, 'name' => 'Motorola Moto G5 - 16 GB',...

$data = array( array( 'id' => 'sku_123ABC', 'qty' => 1, 'price' => 39.95, 'name' => 'T-Shirt', 'options' => array('Size' => 'L', 'Color' => 'Red') ), array( 'id' =>...

This example is based on this post: TensorFlow - numpy-like tensor indexing. In Numpy you can use arrays to index into an array. E.g. in order to select the elements at (1, 2) and (3, 2) in a 2-dimensional array, you can do this: # data is [[0, 1, 2, 3, 4, 5], # [6, 7, 8, 9, 10, 11], # ...

Open your jenkins instance script console http://yourJenkins:port/script following is an example for how to get information about this instance. copy the code to the console and click "Run". /* This scripts shows how to get basic information about Jenkins instance */ def jenkins = Jenki...

A Java 8 compatibility kit for Scala. Most examples are copied from Readme Converters between scala.FunctionN and java.util.function import java.util.function._ import scala.compat.java8.FunctionConverters._ val foo: Int => Boolean = i => i > 7 def testBig(ip: IntPredicate) = ip.tes...

Grab installer from http://scons.org/pages/download.html Or try pip installation tool that comes with Python: pip install scons If scons still can't be found after that, make sure that Python Scripts/ folder is added to PATH for your Python installation.

func sampleWithCompletion(completion:@escaping (()-> ())){ let delayInSeconds = 1.0 DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + delayInSeconds) { completion() } } //Call the function sampleWithCompletion { print("after on...