https://github.com/nv/setinterval-sniffer

Keep tabs on your uncleared intervals. Hunt down lags and memory leaks.
https://github.com/nv/setinterval-sniffer

chrome-devtools chrome-devtools-extension chrome-extension debugging-tool javascript

Last synced: about 1 month ago
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Keep tabs on your uncleared intervals. Hunt down lags and memory leaks.

• Host: GitHub
• URL: https://github.com/nv/setinterval-sniffer
• Owner: NV
• License: mit
• Created: 2013-05-22T20:57:02.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2023-04-18T01:14:48.000Z (over 1 year ago)
• Last Synced: 2024-08-04T09:05:39.150Z (4 months ago)
• Topics: chrome-devtools, chrome-devtools-extension, chrome-extension, debugging-tool, javascript
• Language: JavaScript
• Homepage: https://chrome.google.com/webstore/detail/setinterval-sniffer/odkgihncjgklajjabihpoipfnpcjhdno
• Size: 80.1 KB
• Stars: 42
• Watchers: 5
• Forks: 6
• Open Issues: 0
• Metadata Files:
  • Readme: README.mdown
  • License: MIT-LICENSE.txt

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README

        
# setInterval sniffer

![Chrome DevTools Timers panel](http://nv.github.io/setInterval-sniffer/setInterval-sniffer.png)

## This no longer works

If you relly want to see this extension, consider sponsoring my projects.

## Install

From [Chrome App Store](https://chrome.google.com/webstore/detail/setinterval-sniffer/odkgihncjgklajjabihpoipfnpcjhdno) or from the repository:

  * chrome://extensions/

  * Turn on "Developer mode" checkbox

  * Click "Load unpacked extension..." button

  * Select `setInterval-sniffer/chrome` folder

## How does it work

The sniffer monkey patch (extend without altering the original source code) setInterval method:

```javascript

var originalSetInterval = window.setInterval;

window.setInterval = function(fn, time) {

	var id = originalSetInterval(fn, time);

	post({

		functionName: 'setInterval',

		fn: fn.toString(),

		id: id,

		time: time

	});

	return id;

};

```

## Roadmap

  * Don't stop sniffing on page reload

  * Button to kill an interval in Timers panel

  * Add stacktrace data using the technic from [captureCalls.js](https://github.com/NV/captureCalls.js)

  * Display setTimeout too, visually separate them from setInterval

  * Make it prettier