debajyotibasak

private String generateOTP() {
   int len = 4;
   String numbers = "0123456789";
   Random random = new Random();
   char[] otp = new char[len];
   for (int i = 0; i < len; i++) {
       otp[i] = numbers.charAt(random.nextInt(numbers.length()));
   }
   return String.valueOf(otp);
}

steveluscher

type Article {
  author: Profile!
  body: String!
  comments(first: Int, after: String): CommentsConnection
  createdAt: String!
  description: String!
  favorited: Boolean!
  favoritesCount: Int!
  slug: String!
  tags: [String],

acdlite

// getComponent is a function that returns a promise for a component
// It will not be called until the first mount
function asyncComponent(getComponent) {
  return class AsyncComponent extends React.Component {
    static Component = null;
    state = { Component: AsyncComponent.Component };

    componentWillMount() {
      if (!this.state.Component) {
        getComponent().then(Component => {

nuc

.comPlainTextContentEditable {
  -webkit-user-modify: read-write-plaintext-only;
}

.comPlainTextContentEditable--has-placeholder::before {
  content: attr(placeholder);
  opacity: 0.5;
  color: inherit;
  cursor: text;
}

jcataluna

#!/bin/bash

mkdir -p out

for img in `grep image $1| sed -e 's/^.*image\: //g'`;
do
    cleanname=${img/\//-}
    tag=`docker images | grep $img | awk '{print $2}'`
    echo "Exporting image: $img, tag:$tag ($cleanname)..."
    docker save $img -o out/$cleanname.tar

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

spalladino

# Backup
docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql

# Restore
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE

Schniz

.comPlainTextContentEditable {
  -webkit-user-modify: read-write-plaintext-only;
}

.comPlainTextContentEditable--has-placeholder::before {
  content: attr(placeholder);
  opacity: 0.5;
  color: inherit;
  cursor: text;
}

koistya

import React from 'react';

let lastScrollY = 0;
let ticking = false;

class App extends React.Component {
  componentDidMount() {
    window.addEventListener('scroll', this.handleScroll, true);
  }

signed0

["Life isn’t about getting and having, it’s about giving and being.", "Kevin Kruse"]
["Whatever the mind of man can conceive and believe, it can achieve.", "Napoleon Hill"]
["Strive not to be a success, but rather to be of value.", "Albert Einstein"]
["Two roads diverged in a wood, and I—I took the one less traveled by, And that has made all the difference.", "Robert Frost"]
["I attribute my success to this: I never gave or took any excuse.", "Florence Nightingale"]
["You miss 100% of the shots you don’t take.", "Wayne Gretzky"]
["I’ve missed more than 9000 shots in my career. I’ve lost almost 300 games. 26 times I’ve been trusted to take the game winning shot and missed. I’ve failed over and over and over again in my life. And that is why I succeed.", "Michael Jordan"]
["The most difficult thing is the decision to act, the rest is merely tenacity.", "Amelia Earhart"]
["Every strike brings me closer to the next home run.", "Babe Ruth"]
["Definiteness of purpose is the starting point of all achievement.", "W.