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Moving from jQuery

Events

// jQuery
$(document).ready(function() {
  // code
})

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PSQL

Connect to DB

psql -U postgres

# then enter password for user `postgres`

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# Compiled source #
###################
*.com
*.class
*.dll
*.exe
*.o
*.so

# Packages #

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/* -------------------------------------------------------------------------- */
// All Bootstrap 4 Sass Mixins [Cheat sheet]
// Updated to Bootstrap v4.1.x
// @author https://anschaef.de
// @see https://github.com/twbs/bootstrap/tree/v4-dev/scss/mixins
/* -------------------------------------------------------------------------- */

// Grid variables
$grid-columns: 12 !default;
$grid-gutter-width: 30px !default;

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package com.brunocesar.config;

import java.io.IOException;

import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerResponseContext;
import javax.ws.rs.container.ContainerResponseFilter;
import javax.ws.rs.ext.Provider;

@Provider

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/**
 * Print Stylesheet fuer Deinewebsite.de
* @version         1.0
* @lastmodified    16.06.2016
*/

@media print {
 
/* Inhaltsbreite setzen, Floats und Margins aufheben */
/* Achtung: Die Klassen und IDs variieren von Theme zu Theme. Hier also eigene Klassen setzen */

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/**
 * Convert an image 
 * to a base64 url
 * @param  {String}   url         
 * @param  {Function} callback    
 * @param  {String}   [outputFormat=image/png]           
 */
function convertImgToBase64URL(url, callback, outputFormat){
    var img = new Image();
    img.crossOrigin = 'Anonymous';

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/* *******************************************************************************************
 * THE UPDATED VERSION IS AVAILABLE AT
 * https://github.com/LeCoupa/awesome-cheatsheets
 * ******************************************************************************************* */


// 0. Synopsis.
// http://nodejs.org/api/synopsis.html

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const puppeteer = require('puppeteer');
const cheerio = require('cheerio');

async function run() {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.goto('https://news.ycombinator.com');

  let content = await page.content();
  var $ = cheerio.load(content);

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/**
 * Converts an RGB color value to HSL. Conversion formula
 * adapted from http://en.wikipedia.org/wiki/HSL_color_space.
 * Assumes r, g, and b are contained in the set [0, 255] and
 * returns h, s, and l in the set [0, 1].
 *
 * @param   Number  r       The red color value
 * @param   Number  g       The green color value
 * @param   Number  b       The blue color value
 * @return  Array           The HSL representation