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Single script to run in both Windows batch and Linux Bash?
...he script from the default shell on either Windows or unix will work (only tested with bash). Because I cannot think of a way to include a shebang without making cmd complain loudly, you must always invoke the script via shell. I.e., be sure to use execlp() or execvp() (I think system() does this th...
iOS app error - Can't add self as subview
... you do another push or pop before the animation completes. You can easily test whether this is indeed the case by temporarily changing your Push and Pop operations to Animated:NO (so that they complete synchronously) and seeing if that eliminates the crash.
If this is indeed your problem and you wi...
How should I read a file line-by-line in Python?
...
f = open('test.txt','r')
for line in f.xreadlines():
print line
f.close()
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Best way to select random rows PostgreSQL
... 0.01;
EXPLAIN select * from table order by random() limit 1000;
A quick test on a large table1 shows, that the ORDER BY first sorts the complete table and then picks the first 1000 items. Sorting a large table not only reads that table but also involves reading and writing temporary files. The wh...
Reading JSON from a file?
...
Here is a copy of code which works fine for me
import json
with open("test.json") as json_file:
json_data = json.load(json_file)
print(json_data)
with the data
{
"a": [1,3,"asdf",true],
"b": {
"Hello": "world"
}
}
you may want to wrap your json.load line with a ...
Quickest way to convert a base 10 number to any base in .NET?
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I perf tested all of the solutions on this page, and this is the fastest, about twice as fast as the short solution at the end.
– Justin R.
Oct 3 '14 at 18:36
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What is the difference between Gemfile and Gemfile.lock in Ruby on Rails
...ns. (Running different versions on different machines could lead to broken tests, etc.) You shouldn't ever have to directly edit the lock file.
Check out Bundler's Purpose and Rationale, specifically the Checking Your Code into Version Control section.
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get dictionary value by key
...ng> dict = new Dictionary<string, string>();
dict.Add("UserID", "test");
string userIDFromDictionaryByKey = dict["UserID"];
If you look at the tip suggestion:
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How to add a custom button state
.... The call shall be placed in the setters. I have not tried other classes. Tests performed on a froyo device.
– Giorgio Barchiesi
Apr 28 '11 at 17:09
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How to get base url with jquery or javascript?
...ted by somehow undervoted answer by @Artjom B. For example, when a site is tested over local network (and domain is substituted with IP + local path) the base url could be something like 192.168.0.23/~sites/site/html/ instead of site.dev. Getting the full pathname with Javascript is not an option to...