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Why is @autoreleasepool still needed with ARC?
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ARC doesn't get rid of retains, releases and autoreleases, it just adds in the required ones for you. So there are still calls to retain, there are still calls to release, there are still calls to autorelease and there are still auto release pools.
One of the other changes they made with th...
Best way to replace multiple characters in a string?
...est of 3: 5.7 μs per loop
i) 100000 loops, best of 3: 5.13 μs per loop
Adding a couple of variants:
def ab(text):
for ch in ['\\','`','*','_','{','}','[',']','(',')','>','#','+','-','.','!','$','\'']:
text = text.replace(ch,"\\"+ch)
def ba(text):
chars = "\\`*_{}[]()>#+-...
How do I vertically center text with CSS? [duplicate]
... Because it goes wrong if the div or text changes or more content is added.
– Rob
Jan 14 '12 at 22:01
11
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How to assert greater than using JUnit Assert?
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Just how you've done it. assertTrue(boolean) also has an overload assertTrue(String, boolean) where the String is the message in case of failure; you can use that if you want to print that such-and-such wasn't greater than so-and-so.
You could also add hamcrest-all as a dependency to us...
How do you add multi-line text to a UIButton?
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Fattie
33.1k4949 gold badges304304 silver badges562562 bronze badges
answered Dec 1 '09 at 22:34
jessecurryjessecurry
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Disable browser's back button
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Community♦
111 silver badge
answered Jun 7 '09 at 4:33
RSolbergRSolberg
26k2222 gold badges111111 sil...
Make a div fill up the remaining width
...idth of their container, there is no need to explicitly set this width. By adding a left/right margin the same as the two side divs, it's own contents is forced to sit between them.
Note that the "middle div" goes after the "right div" in the HTML
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Parse config files, environment, and command-line arguments, to get a single collection of options
...for configuration file parsing ( configparser ), environment variable reading ( os.environ ), and command-line argument parsing ( argparse ). I want to write a program that does all those, and also:
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drag drop files into standard html file input
These days we can drag & drop files into a special container and upload them with XHR 2. Many at a time. With live progress bars etc. Very cool stuff. Example here.
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CSS background image alt attribute
This is one I have not had to tackle before. I need to use alt tags on all images in a site including those used by CSS background-image attribute.
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