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Creating your first Slim Framework Application

The Slim Framework is a great micro frameworks for Web application, RESTful API's and Websites. This Tutorial shows how to create a very basic but flexible project for every use case.

Table of contents

• Requirements
• Introduction
• Installation

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package com.diamondium.samplewebview;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.graphics.Bitmap;
import android.view.View;
import android.widget.ProgressBar;

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// takes the form field value and returns true on valid number
function valid_credit_card(value) {
  // accept only digits, dashes or spaces
	if (/[^0-9-\s]+/.test(value)) return false;

	// The Luhn Algorithm. It's so pretty.
	var nCheck = 0, nDigit = 0, bEven = false;
	value = value.replace(/\D/g, "");

	for (var n = value.length - 1; n >= 0; n--) {

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/**
 * Luhn algorithm in JavaScript: validate credit card number supplied as string of numbers
 * @author ShirtlessKirk. Copyright (c) 2012.
 * @license WTFPL (http://www.wtfpl.net/txt/copying)
 */
var luhnChk = (function (arr) {
    return function (ccNum) {
        var 
            len = ccNum.length,
            bit = 1,

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import React, { useState, useEffect, useContext } from "react";
import Modal from 'react-modal';
import { Line } from 'rc-progress';
import { Text } from 'react-native';

import chatContext, {controlMessageEnum} from './ChatContext';
import { PollContext } from './PollContext';
import styles from './pollStyles';