samthor

package main

import (
        "crypto/tls"
        "flag"
        "fmt"
        "log"
        "net/http"
        "os"
        "os/user"

RobbiNespu

How to download your Udemy course videos using youtube-dl

$ youtube-dl --list-extractors | grep udemy

Steps

1. Get link to the course to download. e.g. https://www.udemy.com/course-name/
2. Login into udemy website, save the cookie from chrome using Chrome (Cookie.txt)[1] export extension. Save it to file udemy-cookies.txt
3. Get the link of the video that you want to download. usually in format. Use the command provided below where you have to replace the {course_link} and {path_to_cookies_file} with respective paths.

$ youtube-dl {course_link} --cookies {path_to_cookies_file}

danrigsby

kubectl get secrets -o json --namespace old | jq '.items[].metadata.namespace = "new"' | kubectl create -f  -

cuixin

package main

import (
	"encoding/json"
	"fmt"
)

func dumpMap(space string, m map[string]interface{}) {
	for k, v := range m {
		if mv, ok := v.(map[string]interface{}); ok {

sorenlouv

import React, { Component } from 'react';

export default function withPropsChecker(WrappedComponent) {
  return class PropsChecker extends Component {
    componentWillReceiveProps(nextProps) {
      Object.keys(nextProps)
        .filter(key => {
          return nextProps[key] !== this.props[key];
        })
        .map(key => {

rushilgupta

INTRO

Concurrency is a domain I have wanted to explore for a long time because the locks and the race conditions have always intimidated me. I recall somebody suggesting concurrency patterns in golang because they said "you share the data and not the variables".

Amused by that, I searched for "concurrency in golang" and bumped into this awesome slide by Rob Pike: https://talks.golang.org/2012/waza.slide#1 which does a great job of explaining channels, concurrency patterns and a mini-architecture of load-balancer (also explains the above one-liner).

Let's dig in:

Goroutines

magbicaleman

import React, { Component } from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import registerServiceWorker from './registerServiceWorker';

class Dynamic extends Component {
  constructor(props) {
    super(props);
    this.state = { module: null };
  }

thedaviddias

  <link rel="preload" href="css/global.min.css" as="style" onload="this.rel='stylesheet'">
  <noscript><link rel="stylesheet" href="css/global.min.css"></noscript>
  
  <script>
    /*! loadCSS. [c]2017 Filament Group, Inc. MIT License */
    !function(a){"use strict";var b=function(b,c,d){function j(a){if(e.body)return a();setTimeout(function(){j(a)})}function l(){f.addEventListener&&f.removeEventListener("load",l),f.media=d||"all"}var g,e=a.document,f=e.createElement("link");if(c)g=c;else{var h=(e.body||e.getElementsByTagName("head")[0]).childNodes;g=h[h.length-1]}var i=e.styleSheets;f.rel="stylesheet",f.href=b,f.media="only x",j(function(){g.parentNode.insertBefore(f,c?g:g.nextSibling)});var k=function(a){for(var b=f.href,c=i.length;c--;)if(i[c].href===b)return a();setTimeout(function(){k(a)})};return f.addEventListener&&f.addEventListener("load",l),f.onloadcssdefined=k,k(l),f};"undefined"!=typeof exports?exports.loadCSS=b:a.loadCSS=b}("undefined"!=typeof global?global:this);
    /*! loadCSS rel=preload po

philfreo

def render_pdf_weasyprint(html):
    from weasyprint import HTML
    pdf = HTML(string=html.encode('utf-8'))
    return pdf.write_pdf()

def render_pdf_xhtml2pdf(html):
    """mimerender helper to render a PDF from HTML using xhtml2pdf.
    Usage: http://philfreo.com/blog/render-a-pdf-from-html-using-xhtml2pdf-and-mimerender-in-flask/
    """

nikhita

How to update the Go version

System: Debian/Ubuntu/Fedora. Might work for others as well.

1. Uninstall the exisiting version

As mentioned here, to update a go version you will first need to uninstall the original version.

To uninstall, delete the /usr/local/go directory by: