Programming Languages·Used in 3 roles

JavaScript cover letter

JavaScript is essential for web development roles, powering both frontend interfaces and backend services with Node.js.

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How to showcase JavaScript

  • 1Specify frameworks: React, Vue, Angular, or Node.js
  • 2Mention full-stack capabilities if applicable
  • 3Describe user-facing features you built
  • 4Reference modern JavaScript features (ES6+, TypeScript)
  • 5Quantify performance improvements or user engagement gains

Example phrases to use

  • “Built responsive web applications using React and TypeScript serving 50,000+ monthly users”
  • “Developed Node.js microservices handling 1M+ daily API requests”
  • “Reduced page load time by 40% through JavaScript optimization”
  • “Created reusable React component library used across 5 product teams”

Common mistakes

  • Not distinguishing between vanilla JS and framework experience
  • Forgetting to mention TypeScript proficiency
  • Listing JavaScript without specific project examples
  • Not mentioning modern ES6+ features

Related skills

TypeScriptReact

Roles requiring JavaScript

Software EngineerTechnologyFrontend DeveloperTechnologyFull Stack DeveloperTechnology

Frequently asked questions

Should I mention JavaScript and TypeScript separately?

Yes, TypeScript is increasingly a separate skill. Mention both if you have experience, but emphasize TypeScript for roles that require it.

How important is vanilla JavaScript vs frameworks?

Most jobs care about framework experience, but understanding vanilla JS fundamentals is what makes you effective. Show you know both.

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