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  Fix issue "cannot load such file -- bcrypt_ext (LoadError)"

bcrypt() is a sophisticated and secure hash algorithm designed by The OpenBSD project for hashing passwords. The bcrypt Ruby gem provides a simple wrapper for safely handling passwords. However, sometimes the rails application would fail to start after installing the bcrypt gem on Windows. The error would look similar to below. The issue is that it fails to load the bcrypt_ext which is the native built extension, the reason may be the library is wrongly built. To fix this issue, below steps can...

   RUBY,SOLUTION,RUBY ON RAILS,BCRYPT,LOAD ERROR     2017-03-05 00:21:10

  Fix Permission Issue for iTerm2 to Access Application Support on MacOS

In case you have a new MacOS setup (especially on the newly released Apple M4 MacBook) and you are trying to install/launch iTerm2 on your system, you may encounter an error where it complains that you don't have enough permission to access Application Support, the error message would be like There was a problem finding or creating your application support directory. iTerm2 won't work very well until this problem is fixed. It should be at ~/Library/Application Support/iTerm2. The error was...

   FIX,MACOS,APPLICATION SUPPORT,ITERM2,PERMISSION ISSUE     2024-11-17 13:09:11

  How to Prevent a Data Breach: Guide For Businesses

The consequences of a data breach are nothing to joke about. From reputation damage to regulatory fines, it is a disaster for any business. So you should always strive to do your best to prevent it. But with so many steps to take, where do you even begin? Businesses of all shapes and sizes should follow this 8-step approach: 1. Outline Your Assets Your assets, whether digital or physical, should always remain in your sight. It should be the very first step you take. Picture anything that might r...

   DATA SECURITY     2020-03-04 08:16:44

  Start to work with rollup.js to pack JS files

rollup.js is a module bundler for JavaScript. It compiles small piece of JavaScript modules spreading in different files into a single larger standardized ES code file. This post will show some entry level usage for this library. Introduction Normally a bundler tool would compile a few small JavaScript files into a single JavaScript so that web browser can read, parse and render it properly. A bundler tool may be needed because of a few reasons: Some early stage browsers don't understand module...

   ROLLUP.JS,COMMONJS,ES MODULE,BUNDLE,WEBPACK     2022-06-12 00:00:14

  Essential Rules To Protect Your Credit Card When Shopping Online

You have to protect yourself and your credit card online while shopping. There are a number of ways to do this, but some prove more technical than others. Your basic best defense includes sensible use and layers of protection. The best way to do this is to pick and choose which stores at which you charge purchases. You can reduce the chance of losing your card details to a thief by declining to allow the retailer to store your credit card. Use a password manager to save your passwords and make a...

   SECURITY,CREDIT CARD,MASTERCARD     2019-10-09 08:40:07

  NativeScript-Vue 1.0 Is Finally Out!

After a year of hard work and dedication, NativeScript-Vue 1.0 is finally available in the market. For those who are new to NativeScript- Vue, it is all about a plugin that simply allows one to build native iOS and Android apps with the help of Vue.js. NativeScript-Vue 1.0 is ready for use in production! And it may quite interest you to know that blending of NativeScript and Vue makes it even easier when it comes to building mobile apps. This launch comes with a shiny new website and extensive d...

   JAVASCRIPT,HYBRID APP DEVELOPMENT,NATIVESCRIPT,VUE.JS,MOBILE APPLICATION     2018-02-26 00:14:03

  Short SASS tutorial

If you learned CSS before, you should know that CSS is not a programming language. You can use it to design webpage style, but you cannot use it for programming, i.e, CSS is what designer uses, not what programmer uses. Programmer may think that CSS is very troublesome, it has no variables, no conditional statements, it just allows line-by-line description of HTML elementsLuckily, CSS preprocessor appear which makes CSS programmable. The general idea of CSS preprocessor is using a programming la...

   CSS,SASS,programmable,variable,condition,comment     2012-06-22 08:38:18

  Everyone Can Write Tech Blogs

As a programmer, you’ve probably been told that writing tech blogs can offer a range of benefits. There's no shortage of articles encouraging you to start writing, and this post, this post adds to that chorus. But while the advice is solid, what’s often missing is how to begin the journey of writing tech blogs. Based on my 10+ years of experience, I’d like to share some thoughts to help you get started. From what I've seen, the reason many programmers don’t write tech blo...

   CAREER,RESUME,ADVICE,TECH BLOG     2024-09-08 04:00:52

  Write HTML easily with Emmet and Haml

Writing HTML codes is very boring and tedious as it has many tags and it's static. One solution is to use template, filling content based on other's skeleton. One another solution is high speed writing. We can write HTML codes with Emmet and Haml. These two ways have similar functions but with different characteristics. Haml is based on Ruby, so when working on Ruby/Rails projects, we recommend to use Haml, otherwise we recommend to use Emmet. 1. Emmet Emmet is a editor plugin, the official webs...

   HTML,Emmet,Haml     2013-06-11 19:46:02

  How to commit code to OpenStack

If you want to make contributions to OpenStack, the best way to start is to help the community with blueprint or submit bug fix. To commit codes, you need to conform to some rules in the community. Work flow Register an OpenID Apply for a CLA certificate Apply for company CLA certificate Update contributor list Join OpenStack Contributors group and OpenStack group Set up SSH Keys Get a blueprint/bug git clone codes to local disk. Configure user name and user email and openid Modify codes in a l...

   OpenStack,Contribution     2013-08-04 23:04:45

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