Desen Meng desenmeng

捕捉浏览器中的JS运行时错误，主要通过监听window.onerror来实现。但是对于不同的脚本执行方式以及不同的浏览器，能捕获到的信息会有区别。

window.onerror 讲接收3个参数：

msg：错误描述，比如：a is not defined
url：出错脚本所在的url
lineNumber：出错脚本的行数

本文将对不同浏览器和不同的脚本执行方式进行测试，并总结这些区别。

Update May 2017

Eric Bidelman has documented some of the common workflows possible with headless Chrome over in https://developers.google.com/web/updates/2017/04/headless-chrome.

Update

If you're looking at this in 2016 and beyond, I strongly recommend investigating real headless Chrome: https://chromium.googlesource.com/chromium/src/+/lkgr/headless/README.md

Windows and Mac users might find using Justin Ribeiro's Docker setup useful here while full support for these platforms is being worked out.

This script enables you stop and start Symantec Endpoint Protection on OS X

Installation

sudo curl https://gist.githubusercontent.com/steve-jansen/61a189b6ab961a517f68/raw/sep -o /usr/local/bin/sep
sudo chmod 755 /usr/local/bin/sep
sudo chown root:staff /usr/local/bin/sep

How to install dlib v19.9 or newer (w/ python bindings) from github on macOS and Ubuntu

Pre-reqs:

Have Python 3 installed. On macOS, this could be installed from homebrew or even via standard Python 3.6 downloaded installer from https://www.python.org/download. On Linux, just use your package manager.
On macOS:
- Install XCode from the Mac App Store (or install the XCode command line utils).
- Have homebrew installed
On Linux:

	var child_process = require('child_process');

	// exec: spawns a shell.
	child_process.exec('ls -lah /tmp', function(error, stdout, stderr){
	console.log(stdout);
	});

	// execFile: executes a file with the specified arguments
	child_process.execFile('ls', ['-lah', '/tmp'], function(error, stdout, stderr){
	console.log(stdout);

	//app.js Socket IO Test
	var app = require('express').createServer(),
	redis = require('socket.io/node_modules/redis'),
	io = require('socket.io').listen(app);

	var pub = redis.createClient(port, "url");
	var sub = redis.createClient(port, "url");
	var store = redis.createClient(port, "url");
	pub.auth('pass', function(){console.log("adentro! pub")});
	sub.auth('pass', function(){console.log("adentro! sub")});

	# 1. Make sure you have nginx sub module compiled in
	# nginx -V 2>&1 \| grep --color=always '\-\-with\-http_sub_module'

	# 2. add two directives below at HTTP level

	# nginx.conf
	http {
	# ......

	sub_filter '</head>' '<style type="text/css">html{ filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1); -webkit-filter: grayscale(100%); filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale"); /* Firefox 10+, Firefox on Android */

	var React = require('react');
	var EventListener = require('react/lib/EventListener');
	var partition = require('linear-partitioning');

	var TileLayout = React.createClass({
	getDefaultProps: function() {
	return {
	gutter: 0,
	photos: []
	}

	import { combineReducers } from 'redux';
	import users from './reducers/users';
	import posts from './reducers/posts';

	export default function createReducer(asyncReducers) {
	return combineReducers({
	users,
	posts,
	...asyncReducers
	});

	var factors = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2]
	var tails = ['1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2']
	var provinceMap = {
	11: '北京',
	12: '天津',
	13: '河北',
	14: '山西',
	15: '内蒙古',
	21: '辽宁',
	22: '吉林',