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Way to read first few lines for pandas dataframe
...es a long time to read, and occasionally only want to use the first, say, 20 lines to get a sample of it (and prefer not to load the full thing and take the head of it).
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Is it possible to figure out the parameter type and return type of a lambda?
..._traits implementation based on Specializing a template on a lambda in C++0x which can give the parameter types. The trick, as described in the answer in that question, is to use the decltype of the lambda's operator().
template <typename T>
struct function_traits
: public function_trai...
Python string.join(list) on object array rather than string array
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answered Jan 31 '09 at 0:10
Adam RosenfieldAdam Rosenfield
346k9090 gold badges477477 silver badges564564 bronze badges
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In Jinja2, how do you test if a variable is undefined?
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edited Jul 29 '14 at 0:16
Day
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answered Oct ...
Simplest way to detect a mobile device in PHP
...opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i',$useragent)||preg_match('/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|...
How to get all subsets of a set? (powerset)
..., you can just change the range statement to range(1, len(s)+1) to avoid a 0-length combination.
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AngularJS - wait for multiple resource queries to complete
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203
You'll want to use promises and $q.all().
Basically, you can use it to wrap all of your $resou...
sbt-assembly: deduplication found error
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answered Aug 20 '16 at 20:38
Elesin Olalekan FuadElesin Olalekan Fuad
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How can I programmatically get the MAC address of an iphone
...tIPAddresses();
GetHWAddresses();
int i;
NSString *deviceIP = nil;
for (i=0; i<MAXADDRS; ++i)
{
static unsigned long localHost = 0x7F000001; // 127.0.0.1
unsigned long theAddr;
theAddr = ip_addrs[i];
if (theAddr == 0) break;
if (theAddr == localHost) continue;
N...
Best approach to converting Boolean object to string in java
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edited Nov 10 '17 at 21:29
answered Sep 16 '13 at 16:37
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