Maintaining performant sites is a key part of development. There is more to it than just optimizing code, so let's take a moment to review what we've learnt in this chapter.

We kicked off with a look at the reasons for understanding why performance is critical, before going through various ways to monitor performance, from the simple eyeballing of statistics in Firebug to automating our checks using Grunt.

We then moved on to understand how we can lint our code automatically, as one of the many ways of optimizing our code, before minifying it for production use. We then dived off to take a look at how we can work out if our code contains any unused code, which can be safely removed as part of streamlining our code.

We then rounded up the chapter with a look at implementing best practices. The focus here was less on providing specific examples, and more on sharing some tips and tricks that can be applied to any site. We then used this as a basis for designing a strategy to help maintain...