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軟體工程 How do I use tools to debug CoffeeScript/Javascript files

I use following codes and tools to debug files of CoffeeScript/JavaScript: Safari browser’s developer tool set breakpoints at debugger tab of javascript files responsive design mode of developer tool can help us to see what a web page is rendered. coffeescript code if myVariable? # this statement can check whether this variable has its value(s), null or undefined. If it has value, this statement would return true, otherwise false. alert

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軟體工程 Inquiry Rails ActiveRecord records between two dates

Follow below code for inquiring ones in ActiveRecord between two dates: YourModel.find(:date => somenumber.days.ago..Date.today) # or YourModel.find(:created_at => yourNumber.years.ago..Date.today) # or YourModel.find(:updated_at => yourVariable.months.ago..Date.yesterday) Aboved code are modified from a post at stackoverflow.com. Reference: http://stackoverflow.com/questions/2381718/rails-activerecord-date-between

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軟體工程 Start postgresql at Mac OS X through brew

Use below command to start/restart/stop the postgresql easily: brew services start postgresql brew services restart postgresql brew services stop postgresql Reference: How to start postgreSQL server on mac os x? http://stackoverflow.com/a/24251522/2704360

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軟體工程 CoffeeScript gets URL parameters for HTML select tags' multiple options

Use CoffeeScript and JQuery to bind click event at website for getting parameters of a form at URL. In someone.js.coffee file. The following example is modified from reference 1,2,3 and 4 to meet my need. get_parameters_from_url = -> aryParams = {} # Initial an empty object rawVars = window.location.search.substring(1).split("&") #window is used to getting global variables of browsers in coffeescript. location.search is the query string at URL including the question

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About

Howard Lee, Frontend-engineer with Typescript, JavaScript, HTML, CSS, Angular 19+, ReactJS, Next.js, GraphQL, Tanstack Query, Material-UI, Cypress, Postgres, Amazon Web Services, Google Cloud Platform Docker and TestCafe. Have a certificate of AWS Solution Architect Associate with verify number: 8FYNL55LCEEQ10W5. You can verify at AWS Certificate site or Credly site Tech lead role Lead 4 colleagues to build products and infrastructure Coordinate schedule of delivering products Senior web frontend developer role Products Team-management, form-filling, form-sharing, file-management, repair-management and project-management for construction industry at Suiqui IoT management and EC platform for Liquid Petroleum Gas(LPG) at Wave-In Comm.

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