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Using wget to recursively fetch a directory with arbitrary files in it
... --cut-dirs=X (cuts out X directories). it's a bit annoying to have to manually count directories for X..
– lkraav
Nov 8 '10 at 21:49
3
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What is the proper declaration of main?
...rn type, and what does it mean to return a value from main ? What are the allowed parameter types, and what are their meanings?
...
How to call a method after a delay in Android
I want to be able to call the following method after a specified delay.
In objective c there was something like:
31 Answer...
How to get HTTP response code for a URL in Java?
...od, I get an IOException ("Failed to authenticate with proxy") which is usually an http error 407. Is there a way where I can get a precision (the http error code) about the exception raised by the getRespondeCode() method? By the way, I know how to handle my error, and I just want to know how to di...
$(window).width() not the same as media query
...ve to support more browsers you can use Modernizr's mq method, it supports all browsers that understand media queries in CSS.
if (Modernizr.mq('(max-width: 767px)')) {
//...
} else {
//...
}
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Replacing Pandas or Numpy Nan with a None to use with MysqlDB
...s:
df1 = df.where(pd.notnull(df), None)
Note: this changes the dtype of all columns to object.
Example:
In [1]: df = pd.DataFrame([1, np.nan])
In [2]: df
Out[2]:
0
0 1
1 NaN
In [3]: df1 = df.where(pd.notnull(df), None)
In [4]: df1
Out[4]:
0
0 1
1 None
Note: what you ca...
How is the java memory pool divided?
...ap memory
The heap memory is the runtime data area from which the Java VM allocates memory for all class instances and arrays. The heap may be of a fixed or variable size. The garbage collector is an automatic memory management system that reclaims heap memory for objects.
Eden Space: The pool fr...
SQL - many-to-many table primary key
...at the table sorted, just the index. And the index won't be stored sequentially, it'll be stored in an efficient manner to be able to be retrieved quickly.
In addition, the vast majority of database tables are read far more often than written. That makes anything you do on the select side far more ...
Linq style “For Each” [duplicate]
...
Calling ToList followed by ForEach involves iterating through the original collection twice. I'd prefer a standard foreach loop any day: less typing, more readable and better performance: foreach (var x in someValues) list.Add...
How do I change the number of open files limit in Linux? [closed]
...e using Linux and you got the permission error, you will need to raise the allowed limit in the /etc/limits.conf or /etc/security/limits.conf file (where the file is located depends on your specific Linux distribution).
For example to allow anyone on the machine to raise their number of open files...