Published inNerd For Tech·6 days agoMember-onlyThe Usage of Regular Expression in RubyIntroduction Regular expressions are patterns used to match character combinations in strings. In Ruby, regular expressions are defined between two forward slashes to differentiate them from other language syntaxes. String object in Ruby provides several functions for matching the patterns. One function is =~ . It will return the first index…Ruby6 min readRuby6 min read
Published inNerd For Tech·Jan 3Code performance and load testingI used to mess up code performance and load testing because I thought they are similar, but actually not, so I write this article to introduce them and help myself to have more concepts about these two things. I will use Golang and Ruby to show some examples when talking…Ruby On Rails7 min readRuby On Rails7 min read
Published inNerd For Tech·Nov 27, 2022Golang: Build a simple web server and interact with itGolang is an open-source programming language supported by Google. It is famous for its powerful performance, and it also provides many useful packages for us to build a variety of applications. In this article, I would like to share how to build a simple web server by using some Golang…Golang10 min readGolang10 min read
Published inNerd For Tech·Nov 27, 2022Golang: Testing function in a simple web server projectTesting is important when building a software project. In Golang, there are some packages really useful when doing the unit tests for the functions in our project. In this article, I will show how to use those packages to test a function in a web server project. the project structure…Golang7 min readGolang7 min read
Published inNerd For Tech·Jun 21, 2022Apply Continuous Integration for Ruby project by using CircleCIMost software developers might have experienced this kind of situation: The more members involved in the software project, the more chance that errors appear when new code integrates into the project. To avoid this kind of problem, The concept of Continuous Integration(CI) comes out and it becomes popular to be…Circleci12 min readCircleci12 min read
Published inNerd For Tech·Jul 17, 2021Ruby on Rails: Using Tempfile and Fog-AWS Gem to read excel files saved in AWS S3AWS S3(AWS Simple Storage Service) has become a popular cloud service for people to store objects like files or images. It is more likely that we need to implement a function as accessing files from AWS S3 or uploading files to AWS S3 in our application. Recently, I also encounter…Ruby On Rails6 min readRuby On Rails6 min read
Published inNerd For Tech·Jun 14, 2021Using Vue Test Utils with Jest to test Vue.js under Webpacker in RailsWhen it comes to testing for Ruby on Rails project, RSpec must be the most common tool that people would implement. By using RSpec, we could easily write a good testing script for our Rails project and test our project thoroughly. But after Rails 6 integrates Webpacker in the project…Vuejs6 min readVuejs6 min read
May 30, 2021Ruby on Rails: Using table_name_prefix and namespace to organize modelsWhen selecting record from model in rails, if no specific setting, Rails will directly use the plurals of model name as the table name to do SQL query. …Ruby On Rails3 min readRuby On Rails3 min read
May 12, 2021Ruby on Rails: Using Capistrano to deploy application and run custom taskSometimes we need to deploy our rails application to different stages(staging or production environment)which probably are remote machines, and we may need to do the deployment frequently, for each time the application has new version we would need to update the code to all stages environment. …Ruby On Rails7 min readRuby On Rails7 min read
Dec 31, 2020Ruby on Rails: Sort Array Records By Enum ValueSometimes we might need to order records by their attribute value. If using Ruby on Rails Active Record, we could apply Active Record Query Methods: order to order model records by some of their attribute value. …Ruby On Rails3 min readRuby On Rails3 min read
