Now a days in many website we use chart to show the statistics for the site and there are many plugins and gems available for it. But I liked one gem Chartkick that I used in one of our application to create column chart to show weekly, yearly and From date - ToDate range statistics of site. I found it very useful and easy to use. You will get details about chartkick here. To use chartkick you have to just follow simple step and you are ready to create beautiful Javascript charts with one line of Ruby. Chartkick can work

In one of our Rails application, we needed to generate password protected PDFs. We used wicked_pdf (an awesome gem that generates PDFs from HTML template) to generate PDFs but it doesn't provide feature to secure it. While searching for solution to secure PDFs we came across PDFtk (PDF toolkit). It is a cross-platform tool for manipulating PDF documents. It has feature to add password to PDF document using "user password" as well as "master password" (owner password) which is great. Installing PDFtk You need to install "PDFtk Server" which is a command-line tool

PreactJS is a fast 3kB alternative to React with the same ES6 APIFirst, some background…PreactJS is developed by Jason Miller — one of my programming heroes. The framework was developed with a goal of providing high performance, memory efficiency and close compatibility with React API with an aim to keep the footprint as small as possible i.e 3kb. Preact is increasingly getting adopted in the community with a bunch of high load websites already using it successfully in production. Housing Go is now powered by preact. 🔥 🎉 Thanks to @_developit and @brian_d_vaughn for their help. pic.twitter.com/

I will be showing the steps Ember takes to startup before you start seeing your page rendered in the browser. There is a lot of steps and packages involved in this process but I'll try to make it as simple and compact as possible. Following snippet shows the steps in brief which I will be explaining in detail as we proceed. Ember has evolved from being the SproutCore 2.0 framework to a modern trusted Javascript framework used by major tech companies like Apple, LinkedIn and Vine, ever since it was born. It was developed by a Rails developer Yehuda

Rspec has great feature and that is trait. In rspec we create factory for each class which provides the simplest set of attributes necessary to create an instance of that class. Many times we need some attributes which we do not want to add in original factory and at the same time we do not want to repeat it. In such scenario rspec trait is good option. For few attributes we need different values and we want to use it at multiple places can be another reason to use it. Without Trait: FactoryGirl.define do factory :package do description FFaker:

Server side rendering need lots of configuration to get up and running if you choose to use boilerplate which is filled with package that you may not need, well next.js is developed to solve this problem and it makes server-side rendering in React a breeze What you will learn in this article Get up and running with Next.js Add Client-side transitions between routes How to do handle Ajax in Next.JS create reusable component for rendering Layouts To get started with you need two things Nodejs and yarn installed  you can do that by typing npm install -g

iOS 9 introduced a new way of creating Popovers on iPhone. Instead of using the UIPopoverController class we can now use the UIPopoverPresentationController. Presenting a Popover from a Bar Button Item We need a content View controller that's displayed inside the Popover and also need to set properties for contentSize, modalPresentationStyle and sourceView. Action for right BarButtonItem- @IBAction func addEntity(_ sender: UIBarButtonItem) { let vc: TableViewController = self.storyboard?.instantiateViewController(withIdentifier: "TableViewController") as! TableViewController // Preferred Size vc.preferredContentSize = CGSize(width: 200, height: 200) vc.modalPresentationStyle = .popover let popover: UIPopoverPresentationController = vc.popoverPresentationController! popover.delegate = self popover.sourceView = self.view // RightBarItem popover.

I was facing an issue while working on one of my Ember Apps. Issue was like, Ember data store was not updating the record after receiving the response from backend. So whenever user visit the page, it was showing the old data of that record from Ember-Data store. After some searching I found that Ember-data by default doesn't re-request data that is already present in Ember-data store. If parent route's model has loaded an array of objects then the child route that requires specific object will not make another request. In such case we can force reload the record. this.

Postgres uses a mechanism called MVCC(Multi Version Concurrency Control) to track changes in your database. Due to this reason, some of the rows become “dead”. Dead rows are generated by DELETE and UPDATE operations, as well as transactions that have to be rolled back. Refer this link learn more about MVCC. These dead rows keep on adding as there are lots of updates and deletes. Periodic clean up of these dead rows is necessary to not only save space but also maintain the performance of your database queries. The space taken by these dead rows is called bloat. You

Hi Everyone..!! All of us have dreams to accomplish so many things in our lives..!! There are many instances in which we face difficulties in fulfilling our dreams and sometimes we just let go those dreams due to irritation or frustration that we go through due to those difficulties. But Dreams are one of the reasons for which we live life for and letting them go without fulfilling them is a big heart break..!! I would request all of you to never forget your dreams and kindly go through this article which will help you to never quit your path