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Make a float only show two decimal places
...try using NSNumberFormatter:
NSNumberFormatter* nf = [[[NSNumberFormatter alloc] init] autorelease];
nf.positiveFormat = @"0.##";
NSString* s = [nf stringFromNumber: [NSNumber numberWithFloat: myFloat]];
You may need to also set the negative format, but I think it's smart enough to figure it out....
How can I get the iOS 7 default blue color programmatically?
...ceToken;
dispatch_once(&onceToken, ^{
UIView* view = [[UIView alloc] init];
systemTintColor = view.tintColor;
});
return systemTintColor;
}
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Test for existence of nested JavaScript object key
...his will allow you to safely access deeply nested properties, by using the token ?., the new optional chaining operator:
const value = obj?.level1?.level2?.level3
If any of the levels accessed is null or undefined the expression will resolve to undefined by itself.
The proposal also allows you ...
Stop Chrome Caching My JS Files
...thing like script.js?a=[random Number] with the Random number generated by PHP.
Have you tried expire=0, the pragma "no-cache" and "cache-control=NO-CACHE"? (I dunno what they say about Scripts).
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From inside of a Docker container, how do I connect to the localhost of the machine?
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Perfect if you want to use php xdebug on Windows 10 : ``` zend_extension = xdebug.so xdebug.default_enable = 0 xdebug.remote_enable = 1 xdebug.remote_connect_back = 0 xdebug.remote_host = host.docker.internal```
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GNU Makefile rule generating a few targets from a single source file
...es multiple targets with a single invocation. To use this, replace the ":" token with "&:" in the rule. To detect this feature search for 'grouped-target' in the .FEATURES special variable. Implementation contributed by Kaz Kylheku <kaz@kylheku.com>
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ACE vs Boost vs POCO [closed]
...m_options, regex, bind, serialization, foreach, property_tree, filesystem, tokenizer, various iterator extensions, alogrithm, and mem_fn. These are mostly low-level functionality that really ought to be in the compiler. Some boost libraries are very generic; it can be work to get them to do what y...
How do I check to see if a value is an integer in MySQL?
...ay to check to see if a value is an integer? Something like is_int() in PHP is what I am looking for.
11 Answers
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How do I read a text file of about 2 GB? [duplicate]
...ile will require around 800MB of memory, and the OS may balk at the memory allocation request."
– Emad Aghayi
Aug 24 '16 at 11:30
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Why can't I save CSS changes in Firebug? [closed]
... on demand to your web server (by communication with a one-file webservice php script).
Documentation can be found at my homepage or on the addon page
I would appreciate any testing, bug reports, comments, ratings, discussion on this, as it's still in early beta, but should already work fine.
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