JavaScript.com - A free resource for learning and developing in JavaScript
HackerOne - HackerOne provides a platform designed to streamline vulnerability coordination and bug bounty program by enlisting hackers.
BundlePhobia - Find the performance impact of adding a npm package to your bundle.
Acunetix - Audit your website security and web applications for SQL injection, Cross site scripting and other...
JavaScript Operator Lookup - A full list of JavaScript operators with examples
Trustwave Services - Trustwave is a leading cybersecurity and managed security services provider that helps businesses fight cybercrime, protect data and reduce security risk.