Execute Function After Every Digest Loop Before DOM Render

Question

I would like to execute a piece of code after every $digest loop, after the DOM has been constructed, but before the render. I want this on every $apply, not just the ones after linking/compiling. Where do I add my code?

I am not going to provide my particular use case because I would like to know how to do this in general. If you would like to help me with my particular problem, I have a separate question: Resize IFRAME to Remove Scrollbars

you can do $rootScope.$watch(function(){ ... }). The logic in the fn will be called every $digest loop — Ian Haggerty
– Ian Haggerty, Commented Jul 26, 2013 at 18:00
@IanHaggerty It works! Thanks! Would you like to post that as an answer? — John Tseng
– John Tseng, Commented Jul 26, 2013 at 18:04
@IanHaggerty This runs once for each cycle of the loop, right? — John Tseng
– John Tseng, Commented Jul 26, 2013 at 18:05
Don't thank me, thank thinkster :) thinkster.io/pick/51dc70a1fc30e44f96000001/digest — Ian Haggerty
– Ian Haggerty, Commented Jul 26, 2013 at 18:07

Ivan Chernykh · Accepted Answer · 2014-10-21 14:57:21Z

16

you can do $rootScope.$watch(function(){ ... }). The logic in the fn will be called every $digest loop

edited Oct 21, 2014 at 14:57

Ivan Chernykh

42.2k13 gold badges136 silver badges149 bronze badges

answered Jul 26, 2013 at 18:08

Ian Haggerty

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1 Comment

Simeon Cheeseman Over a year ago

I found it's important to make sure you don't return something weird or you can get infinite digests happening. return true; will fix that.

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