Worked on core component reliability and code quality across the element-plus/element-plus and vuejs/core repositories. Focused on front-end development using Vue.js, JavaScript, and TypeScript, addressing two critical bugs in element-plus by refining test initialization for the Select component and enhancing error handling for InputNumber’s min/max validation. Improved test robustness and aligned error handling with Vue’s global standards, supporting safer releases. In vuejs/core, delivered a targeted code quality enhancement by refactoring compiler code to use const instead of let, increasing maintainability and reducing potential bugs. Demonstrated a methodical approach to refactoring, testing, and maintaining high standards for code hygiene.