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Unexpected results when working with very big integers on interpreted languages
...he sum of 1 + 2 + ... + 1000000000 , but I'm getting funny results in PHP and Node.js .
36 Answers
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Programmatically register a broadcast receiver
...etting() to control whether these components are active:
http://developer.android.com/reference/android/content/pm/PackageManager.html#setComponentEnabledSetting(android.content.ComponentName, int, int)
Note if you are only interested in receiving a broadcast while you are running, it is better to...
How do I wrap text in a UITableViewCell without a custom cell
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Here is a simpler way, and it works for me:
Inside your cellForRowAtIndexPath: function. The first time you create your cell:
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[[U...
Setting custom UITableViewCells height
I am using a custom UITableViewCell which has some labels, buttons and image views to be displayed. There is one label in the cell whose text is a NSString object and the length of string could be variable. Due to this, I cannot set a constant height to the cell in the UITableView 's heightForCe...
What is /dev/null 2>&1?
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>> /dev/null redirects standard output (stdout) to /dev/null, which discards it.
(The >> seems sort of superfluous, since >> means append while > means truncate and write, and either appending to or writing to /dev/null has the same n...
How to use JavaScript regex over multiple lines?
...to match all newlines, you would need to add \r as well to include Windows and classic Mac OS style line endings: (.|[\r\n]).
That turns out to be somewhat cumbersome, as well as slow, (see KrisWebDev's answer for details), so a better approach would be to match all whitespace characters and all no...
What is the documents directory (NSDocumentDirectory)?
Can someone explain to me what the documents directory is on an iOS app and when to use it?
9 Answers
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Improve INSERT-per-second performance of SQLite
...sider a less paranoid journal mode (pragma journal_mode). There is NORMAL, and then there is OFF, which can significantly increase insert speed if you're not too worried about the database possibly getting corrupted if the OS crashes. If your application crashes the data should be fine. Note that in...
iOS Remote Debugging
...ector
Connect your iDevice via USB with your Mac
Open Safari on your Mac and activate the dev tools
On your iDevice: go to settings > safari > advanced and activate the web inspector
Go to any website with your iDevice
On your Mac: Open the developer menu and chose the site from your iDevice...
Does a favicon have to be 32x32 or 16x16?
I'd like to use a single image as both a regular favicon and iPhone/iPad friendly favicon.
9 Answers
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