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Get all keys of an NSDictionary as an NSArray
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And if you want to get all keys and values, here's what you do:
for (NSString *key in dictionary) {
id value = dictionary[key];
NSLog(@"Value: %@ for key: %@", value, key);
}
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Can I Set “android:layout_below” at Runtime Programmatically?
...ible when creating a RelativeLayout at runtime to set the equivalent of android:layout_below programmatically?
4 Answer...
How do I tar a directory of files and folders without including the directory itself?
...he job in one line. It works well for hidden files as well. "*" doesn't expand hidden files by path name expansion at least in bash. Below is my experiment:
$ mkdir my_directory
$ touch my_directory/file1
$ touch my_directory/file2
$ touch my_directory/.hiddenfile1
$ touch my_directory/.hiddenfile2...
Matplotlib: draw grid lines behind other graph elements
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According to this - http://matplotlib.1069221.n5.nabble.com/axis-elements-and-zorder-td5346.html - you can use Axis.set_axisbelow(True)
(I am currently installing matplotlib for the first time, so have no idea if that's correct - I just found it by googling "matplotlib z order grid" - "z order" is...
What is the difference between HTTP status code 200 (cache) vs status code 304?
... cache them (e.g. future-dated Expires or Cache-Control: max-age headers), and that at the time you triggered the new request, those cached objects were still stored in local cache and had not yet expired.
304s, on the other hand, are the response of the server after the browser has checked if a fi...
How do you discover model attributes in Rails?
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In ActiveRecord 5 (and probably earlier) you can call Model.attribute_names.
– aceofbassgreg
Sep 22 '16 at 17:17
add a ...
What is the difference between an Azure Web Site and an Azure Web Role
What are the material differences between the new Azure Web Sites and the traditional Azure Web Roles for an ASP.NET MVC application? What reason would I choose a "web site" over a "web role" or vice versa?
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How can I filter a date of a DateTimeField in Django?
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Looks like it will land in Django 1.9: github.com/django/django/commit/…
– amjoconn
Oct 22 '15 at 19:45
16
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Node.js quick file server (static files over HTTP)
...-server - npx turns it into a one-liner that downloads the necessary files and runs it.
– Mike McKay
Nov 13 '18 at 18:19
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When should I use genetic algorithms as opposed to neural networks? [closed]
...to determine when to use genetic algorithms as opposed to neural networks (and vice-versa) to solve a problem?
8 Answers
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