John-david Dalton is a seasoned software engineer with 18 years of experience, currently protecting supply chains at Socket after recent stints at Bun and Salesforce. Creator of Lodash and occasional TC39 delegate, he blends deep open-source pedigree with practical product engineering across front-end and back-end stacks. His contributions span high-profile projects—lodash, Backbone, acorn, and Bun—where he focused on performance, compatibility, and test automation. At Microsoft and Salesforce he drove UI security and developer-focused demos, consistently improving cross-browser behavior and build/tooling workflows. Known for shipping reliable, well-tested solutions, he also brings a rare mix of language-level insight and pragmatic refactoring that reduces memory and runtime costs. Based in Midlothian, Virginia, he pairs long-term maintenance thinking with hands-on coding across the full JavaScript ecosystem.
A modern JavaScript utility library delivering modularity, performance, & extras.
Role in this project:
Full-stack Developer
Contributions:2 releases, 3 reviews, 7083 commits in 7 years 6 months
Contributions summary:John-david primarily contributed to the lodash library by fixing bugs related to core functionalities. They focused on improving the reliability of array and object operations, specifically addressing issues related to how values are compared and assigned. Their commits also demonstrate a focus on performance through the optimization of core functions. The contributions include enhancements in test coverage, demonstrating skills in quality assurance and debugging.
Contributions:351 commits, 139 PRs, 393 pushes in 2 years 10 months
Contributions summary:John-david primarily contributed to the internal workings of the babel-plugin-lodash repository. They focused on refactoring the module structure and resolving paths for the lodash modules. The user also addressed bugs in the codebase, such as detecting and handling chaining issues. Additionally, they contributed by enhancing the codebase's commenting practices, improving readability and maintainability.
babelbuildslodashjavascriptbabel-plugin
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.