Tutorial by Examples: f

This will be our example data frame: color name size 0 red rose big 1 blue violet big 2 red tulip small 3 blue harebell small Using the magic __getitem__ or [] accessor. Giving it a list of True and False of the same length as the dataframe will give you: ...

Let's consider this example, that outputs the squares of the numbers 3, 5, and 7: let nums = [3, 5, 7] let squares = nums.map(function (n) { return n * n }) console.log(squares) Run in RunKit The function passed to .map can also be written as arrow function by removing the function keywor...

/* @flow */ function product(a: number, b: number){ return a * b; } const b = 3; let c = [1,2,3,,{}]; let d = 3; import request from 'request'; request('http://dev.markitondemand.com/MODApis/Api/v2/Quote/json?symbol=AAPL', (err, res, payload)=>{ payload = JSON.parse(payload);...

module.exports = { entry: './src/index', output: { path: __dirname + '/build', filename: 'bundle.js' }, module: { rules: [{ test: /\.tsx?$/, loader: 'ts-loader', exclude: /node_modules/ }] }, res...

This is a minimal tsconfig to get you up and running. { "include": [ "src/*" ], "compilerOptions": { "target": "es5", "jsx": "react", "allowSyntheticDefaultImports": tr...

import React, { Component } from 'react'; import ReactDOM from 'react-dom'; interface AppProps { name: string; } interface AppState { words: string[]; } class App extends Component<AppProps, AppState> { constructor() { super(); this.state = { ...

This example will demonstrate how to get started with Firebase in your web apps with JavaScript. We are going to add a text child in our Firebase Database and display it in realtime on our web app. Lets get started. Go to the Firebase Console - https://console.firebase.google.com and create a...

Sample Data XML Document First, let's define a sample XML document named "books.xml" in our current directory: <?xml version="1.0" encoding="UTF-8"?> <books> <book> <title>Of Mice And Men</title> <author>Joh...

This is an enumeration for const creation. Go compiler starts iota from 0 and increments by one for each following constant. The value is determined at compile time rather than run time. Because of this we can't apply iota to expressions which are evaluated at run time. Program to use iota in cons...

Each .NET Core component (SDK, Host and Shared Framework) is versioned independently. You can find the version for each of them separately. SDK You can use the --version option to dotnet to see the SDK version. For example: $ ~/dotnet-1.1.1/dotnet --version 1.0.0-preview2-1-003176 dotne...

To use Autofac in your project, all you have to do is install Autofac from NuGet Package Manager. Open the solution that want to use Autofac in, then select Manager NuGet Packages for Solution... by going to: Tools -> NuGet Package Manager -> Manager NuGet Packages for Solution... In the N...

You can use any name for the function. function custom_postype(){ register_post_type('cus_post',array( 'labels'=>array( 'name'=>'khaiyam'// Use any name you want to show in menu for your users ), 'public'=>true,// **Must required ...

Using the previous example of calculating the factorial of an integer, put in the hash table all values of factorial calculated inside the recursion, that do not appear in the table. As in the article about memoization, we declare a function f that accepts a function parameter fact and a integer pa...

Consult the above example tables when looking at this example. SELECT m.mgr_id , m.first_name , m.last_name FROM managers m INNER JOIN employees e ON e.mgr_id = m.mgr_id WHERE e.emp_id = 'E03' ; MGR_IDFIRST_NAMELAST_NAMEM03BarrelJones As this is the inverse of the above example, we know that for ...

One of the common ways to parametrize your performance scripts is to use a CSV file. The best example of CSV input files usage is a login process. If you want to test your application across different users, you need to provide a list of user credentials. Let’s assume that we have a login request t...

Consider next example: public interface A { default void foo() { System.out.println("A.foo"); } } public interface B { default void foo() { System.out.println("B.foo"); } } Here are two interfaces declaring default method foo with the same signature. If you wi...

here is a sample web.config in order to have both http and https support. <?xml version="1.0" encoding="utf-8"?> <configuration> <appSettings> <add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" /> </a...

Data can be extracted from a blastdb using blastdbcmd which should be included in a blast installation. You can specify from the options below as part of -outfmt what metadata to include and in what order. From the man page: -outfmt <String> Output format, where the available format sp...

// Remove the auto-paragraph and auto-line-break from the content remove_filter( 'the_content', 'wpautop' ); // Remove the auto-paragraph and auto-line-break from the excerpt remove_filter( 'the_excerpt', 'wpautop' );

/** * Remove the automatic line breaks from content and excerpts. * * @since 1.0.0 */ function remove_content_auto_line_breaks() { // Remove the auto-paragraph and auto-line-break from the content remove_filter( 'the_content', 'wpautop' ); // Remove the auto-paragraph and a...