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Detect when an image fails to load in Javascript
...y wouldn't try and load an image that isn't there.
– PHP Guru
Feb 12 at 19:29
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Eclipse: Set maximum line length for auto formatting?
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Note: Eclipse (Kepler, at least) very obnoxiously allows you to edit the built-in profile to your heart's content, only to stop you from saving it with an unobtrusive notification that you CAN'T edit built-in profiles, and must create a copy and edit that instead.
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Uncaught ReferenceError: jQuery is not defined [duplicate]
...this problem when the certificate for the site expires. Today I got it and all of my sites started failing on refresh because of it. On your console you'll only see: ReferenceError: jQuery is not defined The problem is you won't find the cause until you look at the URL and see this: code.jquer...
SQL command to display history of queries
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try
cat ~/.mysql_history
this will show you all mysql commands ran on the system
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How to return value from an asynchronous callback function? [duplicate]
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This is impossible as you cannot return from an asynchronous call inside a synchronous method.
In this case you need to pass a callback to foo that will receive the return value
function foo(address, fn){
geocoder.geocode( { 'address': address}, function(results, status) {
fn(r...
How do we control web page caching, across all browsers?
Our investigations have shown us that not all browsers respect the HTTP cache directives in a uniform manner.
29 Answers
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How to alter SQL in “Edit Top 200 Rows” in SSMS 2008
...swered Jan 5 '10 at 8:29
David HallDavid Hall
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全食超市（Whole Foods Market）——精品超市的运营之道 - 资讯 - 清泛网 -...
...质量监督委员会评估监督并建立食品安全档案，一旦发现问题立即启动产品召回机制；3）所有产品均建立全食超市自有品质评价体系，依据产品生产过程按照1分—5+分详细分类，给予消费者充分自主选择权。
营销：关注产品背...
马化腾给创业者的3点建议：行业跨界领域最有机会诞生创新 - 资讯 - 清泛网 ...
...不平衡等等。在内地，其实很多学校也是蛮复杂，有很多问题，需要一些明朗的政策支持，可能下面做事情才会更加清晰。正是这次我们看到产学研的成果，我们看到李教授带出来的团队，正是得益于港科大比较清晰的政策，比...
Is there a way to check which CSS styles are being used or not used on a web page?
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Install the CSS Usage add-on for Firebug and run it on that page. It will tell you which styles are being used and not used by that page.
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