Fix: Undo git reset --hard and Recover Lost Commits
How to undo git reset --hard and recover lost commits using git reflog — step-by-step recovery for accidentally reset branches, lost work, and dropped stashes.
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831 articles — Page 47 of 70
Fix: JavaScript NaN === NaN Returns false (NaN Comparison Bugs)
How to fix JavaScript NaN comparison bugs — why NaN !== NaN, the difference between isNaN() and Number.isNaN(), and how to correctly check for NaN in conditionals and array operations.
Fix: Linux No Space Left on Device (Disk Full Error)
How to fix 'No space left on device' errors on Linux, find what is consuming disk space with df and du, clean up logs, Docker images, old kernels, and temporary files, and prevent disk full situations.
Fix: MySQL Deadlock Found When Trying to Get Lock
How to fix MySQL 'Deadlock found when trying to get lock; try restarting transaction' — diagnosing deadlock causes, using SHOW ENGINE INNODB STATUS, and preventing deadlocks with consistent lock ordering.
Fix: React Native Metro Bundler Failed to Start or Bundle
How to fix React Native Metro bundler errors — unable to resolve module, EMFILE too many open files, port already in use, transform cache errors, and Metro failing to start on iOS or Android.
Fix: Stripe Webhook Signature Verification Failed
How to fix Stripe webhook signature verification errors — why Stripe-Signature header validation fails, how to correctly pass the raw request body, and how to debug webhook delivery in the Stripe dashboard.
Fix: Vue 3 Reactive Data Not Updating (ref/reactive Not Triggering Re-render)
How to fix Vue 3 reactive data not updating the UI — why ref and reactive lose reactivity, how to correctly mutate reactive state, and common pitfalls with destructuring and nested objects.
Fix: AWS EC2 SSH Connection Refused or Timed Out
How to fix AWS EC2 SSH connection refused or timed out errors — security group rules, key pair issues, sshd not running, wrong username, and network ACL misconfigurations.
Fix: CSS position: sticky Not Working
How to fix CSS position sticky not working — element scrolls away instead of sticking, caused by overflow hidden on a parent, missing top value, wrong stacking context, or incorrect height on the container.
Fix: JavaScript Closure in Loop — All Callbacks Get the Same Value
How to fix the JavaScript closure loop bug where all event handlers or setTimeout callbacks return the same value — using let, IIFE, bind, or forEach instead of var in loops.
Fix: Kubernetes exceeded quota / Pod Stuck in Pending Due to Resource Quota
How to fix Kubernetes 'exceeded quota' errors — pods stuck in Pending because namespace resource quotas are exhausted, missing resource requests, and LimitRange defaults.
Fix: EMFILE Too Many Open Files / ulimit Error on Linux
How to fix EMFILE too many open files errors on Linux and Node.js — caused by low ulimit file descriptor limits, file handle leaks, and how to increase limits permanently.