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 blog.stevenlevithan.com
Mimicking Lookbehind in JavaScript
| | v8project.blogspot.de
RegExp lookbehind assertions · V8
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| | JavaScript regular expressions are getting some new functionality: lookbehind assertions.
| | 2ality.com
ES2018: RegExp lookbehind assertions
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| | The proposal "RegExp Lookbehind Assertions" by Gorkem Yakin, Nozomu Kat?, Daniel Ehrenberg is part of ES2018. This blog post explains it.
| | mathiasbynens.be
ECMAScript regular expressions are getting better! · Mathias Bynens
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| | [AI summary] The article discusses recent advancements in ECMAScript regular expressions, including new features like dotAll mode, lookbehind assertions, named capture groups, Unicode property escapes, and set notation, along with proposals for further enhancements.
| | ezyang.github.io
Use MCP Servers | AI Blindspots
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| Model Context Protocol servers provide a standard interface for LLMs to interact with their environment. Cursor Agent mode and Claude Code use agents extensively. For example, instead of needing a separate RAG system (e.g., as previously provided by Cursor) to find and feed the model relevant context files, the LLM can instead call an MCP which will let it lookup what files it wants to look at before deciding what to do. Similarly, a model can run tests or build and then immediately work on fixing problems when this occurs. It is clear that Anthropic's built-in MCP servers are useful, and you should use agent mode when you can.