Tuning code can be quite expensive when compared against the cost of purchasing additional hardware.
与另外购买硬件的花费相比，代码优化可能是相当昂贵的。
For pre-existing applications, reviewing the design and code to suggest appropriate tuning activities.
对于已存在的应用系统，复审它们的设计和代码，提出适当的性能调整建议。
This section steps through some of the performance tuning and best practice tips for improving the speed of your jQuery code.
这个部分介绍一些性能调优知识，以及改进jQuery代码速度的最佳实践技巧。
应用推荐