Tutorial by Examples: p

Web Scraping in Python (using BeautifulSoup)

When performing data science tasks, it’s common to want to use data found on the internet. You’ll usually be able to access this data via an Application Programming Interface(API) or in other formats. However, there are times when the data you want can only be accessed as part of a web page. In case...

web-scraping • Getting started with web-scraping

Example of Solr Search

solr • Getting started with solr

Creating a custom Entry control with a MaxLength property

The Xamarin Forms Entry control does not have a MaxLength property. To achieve this you can extend Entry as below, by adding a Bindable MaxLength property. Then you just need to subscribe to the TextChanged event on Entry and validate the length of the Text when this is called: class CustomEntry ...

Xamarin.Forms • Creating custom controls

Spread dot operator(*.)

Spread dot operator can be used instead of collect method (1..10)*.multiply(2) // equivalent to (1..10).collect{ it *2 } d = ["hello", "world"] d*.size() // d.collect{ it.size() }

groovy • Groovy code golfing

Parallel processing using Gpars

Gpars offers intuitive ways to handle tasks concurrently import groovyx.gpars.* GParsPool.withPool { def result = dataList.collectParallel { processItem(it) } }

groovy • Groovy code golfing

Use react-navigation for navigation in react native apps

With the help of react-navigation, you can add navigation to your app really easy. Install react-navigation npm install --save react-navigation Example: import { Button, View, Text, AppRegistry } from 'react-native'; import { StackNavigator } from 'react-navigation'; const App = StackNavigat...

react-native • Navigator Best Practices

Including plots

The simplest way to include plots in your shinyApp is to use plotOutput in the ui and renderPlot in the server. This will work with base graphics as well as ggPlots library(shiny) library(ggplot2) ui <- fluidPage( plotOutput('myPlot'), plotOutput('myGgPlot') ) server <- function...

shiny • Getting started with shiny

Put Below code for Animated dialog...

animated_android_dialog_box.xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:padding="16dp"> &...

Android • Animated AlertDialog Box

Image pulling with progress bars, written in Go

Here is an example of image pulling using Go and Docker Engine API and the same progress bars as the ones shown when you run docker pull your_image_name in the CLI. For the purposes of the progress bars are used some ANSI codes. package yourpackage import ( "context" "en...

Docker • Docker Engine API

Making a cURL request with passing some complex structure

When using cURL for some queries to the Docker API, it might be a bit tricky to pass some complex structures. Let's say, getting a list of images allows using filters as a query parameter, which have to be a JSON representation of map[string][]string (about the maps in Go you can find more here). H...

Docker • Docker Engine API

For Ionic 3 Example

Install the Cordova and Ionic Native plugins: $ ionic cordova plugin add cordova-plugin-camera $ npm install --save @ionic-native/camera Your app.module.ts will need to inject camera: import { Camera } from '@ionic-native/camera'; .......... @NgModule({ declarations: [ MyApp ], ...

ionic-framework • Device camera and photo library access from Ionic application

User defined REReplaceCallback function

function REReplaceCallback(re,str,callback) { /* Thanks to Ben Nadel "Learning ColdFusion 8: REMatch() For Regular Expression Matching" from 2007-06-13 https://www.bennadel.com/blog/769-learning-coldfusion-8-rematch-for-regular-expression-matching.h...

coldfusion • Working with RegExp Replace callbacks

Using REReplaceCallback function

REReplaceCallback('YOUR REGEX GOES HERE','AND YOUR STRING HERE',function(groups) { //now you can access the 'groups' array containing all the captured groups return result; //return whatever you've processed inside });

coldfusion • Working with RegExp Replace callbacks

Http with axios

Configure For web request you can also use library axios. It's easy to configure. For this purpose you can create file axios.js for example: import * as axios from 'axios'; var instance = axios.create(); instance.defaults.baseURL = serverURL; instance.defaults.timeout = 20000;] //... //and...

react-native • HTTP Requests

Setup Token on Header

Set the token on <head> of your default.blade.php. <meta name="csrf-token" content="{{csrf_token()}}"> Add ajaxSetup on the top of your script, that will be accessible to everywhere. This will set headers on each ajax call $.ajaxSetup({ headers: { '...

Laravel • Token Mismatch Error in AJAX

Check session storage path & permission

Here I assume that project app url is APP_URL=http://project.dev/ts/toys-store Set the writable permission to storage_path('framework/sessions') the folder. Check the path of your laravel project 'path' => '/ts/toys-store', the root of your laravel project. Change the name of your cookie 'co...

Laravel • Token Mismatch Error in AJAX

Installation or Setup

Detailed instructions on getting sqlite3 set up or installed.

sqlite3 • Getting started with sqlite3

Server supports ranges

Request:"http://example.com" GET / HTTP/1.1 Host: example.com User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate ...

http-headers • Accept-Ranges: (Response)

Server doesn't support ranges

Request:"http://example.com" GET / HTTP/1.1 Host: example.com User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate ...

http-headers • Accept-Ranges: (Response)

dispatcher-servlet.xml

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context=&quot...

spring-mvc • Spring-MVC with annotations