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w3cpress / gist:8154886
Created December 28, 2013 01:12 — forked from tlxue/gist:1105963
javascript: var d = document,
w = window,
e = w.getSelection,
k = d.getSelection,
x = d.selection,
s = (e ? e() : (k) ? k() : (x ? x.createRange().text : 0)),
f = 'http://www.tumblr.com/share',
l = d.location,
e = encodeURIComponent,
p = '?v=3&u=' + e(l.href) + '&t=' + e(d.title) + '&s=' + e(s),
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w3cpress / gist-blog-browser-js-error-catch-summary.md
Created July 21, 2013 16:36 — forked from neekey/gist-blog-browser-js-error-catch-summary.md

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。