Tutorial by Examples: re

A series is a one-dimension data structure. It's a bit like a supercharged array, or a dictionary. import pandas as pd s = pd.Series([10, 20, 30]) >>> s 0 10 1 20 2 30 dtype: int64 Every value in a series has an index. By default, the indices are integers, running fro...

To round a value to the nearest multiple of x: function roundTo(value:Number, to:Number):Number { return Math.round(value / to) * to; } Example: roundTo(8, 5); // 10 roundTo(17, 3); // 18

Output some information about a known remote: origin git remote show origin Print just the remote's URL: git config --get remote.origin.url With 2.7+, it is also possible to do, which is arguably better than the above one that uses the config command. git remote get-url origin

List all the existing remotes associated with this repository: git remote List all the existing remotes associated with this repository in detail including the fetch and push URLs: git remote --verbose or simply git remote -v

Solution 1: $('#parent').prepend($('#child')); Solution 2: $('#child').prependTo($('#parent')); Both solutions are prepending the element #child (adding at the beginning) to the element #parent. Before: <div id="parent"> <span>other content</span> </di...

from pandas_datareader import data # Only get the adjusted close. aapl = data.DataReader("AAPL", start='2015-1-1', end='2015-12-31', data_source='yahoo')['Adj Close'] >>> aapl.plot(title='AAPL Adj. C...

Using the Control.Invoke() method you may move the execution of a method or function from a background thread to the thread that the control was created on, which is usually the UI (User Interface) thread. By doing so your code will be queued to run on the control's thread instead, which removes the...

This method will work on modern versions of Arch, CentOS, CoreOS, Debian, Fedora, Mageia, openSUSE, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, Ubuntu, and others. This wide applicability makes it an ideal as a first approach, with fallback to other methods if you need to also identify o...

Elements and attributes behave differently with respect to default namespaces. This is often the source of confusion. An attribute whose name has no prefix lives in no namespace, also when a default namespace is in scope. <?xml version="1.0"?> <foo attr="value" xmlns=...

Dim inputCode As Integer = Console.Read() Console.Read() awaits input from the user and, upon receipt, returns an integer value corresponding with the character code of the entered character. If the input stream is ended in some way before input can be obtained, -1 is returned instead.

Dim inputChar As ConsoleKeyInfo = Console.ReadKey() Console.ReadKey() awaits input from the user and, upon receipt, returns an object of class ConsoleKeyInfo, which holds information relevant to the character which the user provided as input. For detail regarding the information provided, visit t...

You can easily add a breakpoint to your code by clicking on the grey column to the left of the line of your VBA code where you want execution to stop. A red dot appears in the column and the breakpoint code is also highlighted in red. You can add multiple breakpoints throughout your code and resumi...

This example will show you how to quickly get a hello world Aurelia application up and running using the Aurelia CLI. Prerequisites The Aurelia CLI is a Node.js based application, so make sure you install it first before proceeding. You will need Node.js 4.4.7 or later. You will also need a Git c...

While Value Converters can be comprised of either a toView or fromView method, in the below example we will be creating a basic Value Converter which just uses the toView method which accepts the value being sent to the view as the first argument. to-uppercase.js export class ToUppercaseValueConve...

A bi-directional value converter utilizes two methods in your Value Converter class: toView and fromView these methods are aptly named to signify which direction the data is flowing. In our example we will be creating a prepend Value Converter which will make sure that an amount entered in our app ...

When you use or, it will either return the first value in the expression if it's true, else it will blindly return the second value. I.e. or is equivalent to: def or_(a, b): if a: return a else: return b For and, it will return its first value if it's false, else it r...

Create project using STS (Spring Starter Project) or Spring Initializr (at https://start.spring.io ). Add a Web Dependency in your pom.xml: <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId&...

Recursion occurs when a function call causes that same function to be called again before the original function call terminates. For example, consider the well-known mathematical expression x! (i.e. the factorial operation). The factorial operation is defined for all nonnegative integers as follows:...

ng-repeat is a built in directive in Angular which lets you iterate an array or an object and gives you the ability to repeat an element once for each item in the collection. ng-repeat an array <ul> <li ng-repeat="item in itemCollection"> {{item.Name}} </...

$scope.$emit Using $scope.$emit will fire an event name upwards through the scope hierarchy and notify to the $scope.The event life cycle starts at the scope on which $emit was called. Working wireframe : $scope.$broadcast Using $scope.$broadcast will fire an event down the $scope. We can list...