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Performance/Addons/BestPractices: Difference between revisions
→Asynchronous I/O
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==Asynchronous I/O== | ==Asynchronous I/O== | ||
* Never use synchronous XMLHttpRequests. Use asynchronous requests instead and show a throbber image or message in case you need the user to wait. | * Never use synchronous XMLHttpRequests. Use asynchronous requests instead and show a throbber image or message in case you need the user to wait. | ||
* The NetUtils Javascript module provides helpers for asynchronous reading and copying of files. View [https://developer.mozilla.org/en/JavaScript_code_modules/NetUtil.jsm documentation and examples]. | |||
==Asynchronous SQL Queries== | ==Asynchronous SQL Queries== | ||