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Front-End Interview Questions66. How to find the Performance Bottleneck of a web app?

66. How to find the Performance Bottleneck of a web app?

Performance
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In order to improve the performance, you need to first target where performance is not good.

  1. Understand the metrics
  2. Explain the tools to check above metrics
  3. People use all kinds of devices and all kinds of networks, you need track them, just like 56. How do you track errors from your web application?
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