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Debugging LiveView with LiveDebugger

Talkat ElixirConf EU 2025 · 2025-05-15..05-16· [elixir-and-erlang]
slides:none on file

LiveDebugger inspects a broken Todo LiveView by showing the component tree, current assigns and a callback trace, revealing that the parent sends a new log but the child’s update callback mishandles it due to a typo. The demo opens the editor, fixes the typo in the update function, reloads the app, and the missing activity log appears, proving the tool finds the exact failing callback and the minimal code change that fixes the live app.

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