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to drawRect or not to drawRect (when should one use drawRect/Core Graphics vs subviews/images and wh
...frame rate on the oldest hardware your app will support. If you can't get 60fps, drop down to CoreGraphics. When you've done this for a while, you get a sense for when UIKit is probably a waste of time.
So, why is Core Graphics fast?
CoreGraphics isn't really fast. If it's being used all the time,...
ComponentGroup 组件组扩展：监控内容变化和批量启用禁用组件 · App Inventor 2 中文网
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2020-03-01
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.keyCode vs. .which
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Note: The answer below was written in 2010. Here many years later, both keyCode and which are deprecated in favor of key (for the logical key) and code (for the physical placement of the key). But note that IE doesn't support code, and its support for key is based...
How can I read and parse CSV files in C++?
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304
If you don't care about escaping comma and newline,
AND you can't embed comma and newline in qu...
jQuery scroll to element
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4105
Assuming you have a button with the id button, try this example:
$("#button").click(function()...
How do I split a string, breaking at a particular character?
...t 4~New York~NY~12345';
var fields = input.split('~');
var name = fields[0];
var street = fields[1];
// etc.
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How to namespace Twitter Bootstrap so styles don't conflict
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edited May 23 '17 at 12:02
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answered Dec 20 '12 at 17:14
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Finding the number of days between two dates
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$now = time(); // or your date as well
$your_date = strtotime("2010-01-31");
$datediff = $now - $your_date;
echo round($datediff / (60 * 60 * 24));
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Reading Excel files from C#
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var fileName = string.Format("{0}\\fileNameHere", Directory.GetCurrentDirectory());
var connectionString = string.Format("Provider=Microsoft.Jet.OLEDB.4.0; data source={0}; Extended Properties=Excel 8.0;", fileName);
var adapter = new OleDbDataAdapter("SE...
Async/await vs BackgroundWorker
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edited Sep 13 '12 at 21:08
answered Sep 13 '12 at 20:55
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