It is a pretty typical approach to use an anonymous function for asynchronous calls from inside a loop:
var a = getInitialData(); > for (var i = 0, len = a.length; i < len; i++) { > (function(el) { > /* do something non-blocking here */ > })(a[i]); > } JSLint doesn't like this code with "Don't make functions within a loop" warning, and it is actually right since it really creates a new anonymous function on every single loop iteration. An obvious solution is to declare this function outside a loop, but it would make a code less readable. Even if a declaration would just precede the loop: you see a call here, you see a declaration somewhere else, and here you are, lost all your attention. My question is how bad this approach is for an overall performance? In particular, how fast and efficient a garbage collection of anonymous functions is? How much memory a typical anonymous function can consume and how long it may exist in a memory? -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to nodejs@googlegroups.com To unsubscribe from this group, send email to nodejs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en