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Set attributes from dictionary in python
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If you pass initial data as def __init__(self,**initial_data) you get the added benefit of having an init method that can also do keyword arguments too (e.g. "e = Employee(name='Oscar')" or just take in a dictionary (e.g. "e ...
How can I send mail from an iPhone application
...ct:@"My Subject"];
[controller setMessageBody:@"Hello there." isHTML:NO];
if (controller) [self presentModalViewController:controller animated:YES];
[controller release];
Then the user does the work and you get the delegate callback in time:
- (void)mailComposeController:(MFMailComposeViewContro...
jquery .html() vs .append()
...does a bunch of cross-browser checks and various other optimisations. E.g. if you pass just <div></div> to jQuery(), jQuery will take a shortcut and simply do document.createElement('div').
EDIT: To see the sheer quantity of checks that jQuery performs, have a look here, here and here.
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How to create empty text file from a batch file?
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@Reegan If you used echo 2 without the ., the console would read "ECHO is off." Using echo. 2 effectively silences console output by only displaying a newline.
– OneManBand
Nov 19 '14 at 19:28
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What does the unary plus operator do?
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It's there to be overloaded if you feel the need; for all predefined types it's essentially a no-op.
The practical uses of a no-op unary arithmetic operator are pretty limited, and tend to relate to the consequences of using a value in an arithmetic ex...
Unix shell script find out which directory the script file resides?
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This doesn't work if you've called the script via a symbolic link in a different directory. To make that work you need to use readlink as well (see al's answer below)
– AndrewR
Mar 17 '10 at 23:26
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Using git commit -a with vim
... @yoda: You can also get to normal mode by using ctrl+c. Also, it's Shift+(z+z) to save and quit (two capital Z's).
– Rocket Hazmat
May 23 '11 at 14:58
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String Resource new line /n not possible?
...ing name="title">Hello\nWorld!</string>
</resources>
Also, if you plan on using the string as HTML, you can use &lt;br /&gt; for a line break(<br />)
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="title">Hello&lt;br /&gt;W...
How to comment out a block of code in Python [duplicate]
...ocumentation strings not block comments, although it has a similar effect. If you're just commenting things out temporarily, this is fine as a temporary measure.
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Is background-color:none valid CSS?
Can anyone tell me if the following CSS is valid?
7 Answers
7
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