5. Use find() rather than context This is not really true. The "context" argument uses find under the covers anyway; the performance benefit is literally the o

5. Use find() rather than context This is not really true. The "context" argument uses find under the covers anyway; the performance benefit is literally the overhead of a function calling another function (which is, compared to DOM operations, miniscule). The jQuery source code comments say as much: // HANDLE: $(expr, context) // (which is just equivalent to: $(context).find(expr)