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Ruby - test for array
...'abc'.size both work, but 'abc'.count doesn't work like that).
Caution: a string is_a? Enumerable, so perhaps this isn't what you want... depends on your concept of an array like object.
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Get the first key name of a javascript object [duplicate]
... to execute significantly faster, O(1) rather than O(n). It's not silly at all.
– Steven Lu
Jan 8 '13 at 6:49
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What is the LD_PRELOAD trick?
...ibrary (including the C runtime, libc.so). So to run ls with your special malloc() implementation, do this:
$ LD_PRELOAD=/path/to/my/malloc.so /bin/ls
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In mongoDb, how do you remove an array element by its index?
...much standard documents with keys that are consecutive integers instead of strings).
– marr75
Nov 30 '12 at 5:00
This ...
Docker: adding a file from a parent directory
...ce it tries to do it from its same directory (tbh, just what one would normally expect). Is there any way to do the same trick in Docker Hub?
– Marcel Hernandez
Mar 25 '16 at 20:31
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How do you split a list into evenly sized chunks?
...t and empty the second list for the next round of data, but this is potentially extremely expensive.
64 Answers
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Referencing system.management.automation.dll in Visual Studio
...g it updated, releasing new packages, etc.
– Ben Randall
Feb 5 '16 at 19:24
last updated 29/03/2013 " The owner has un...
AngularJS - How to use $routeParams in generating the templateUrl?
...ust use the "template:" key instead of "templateUrl" and provide it with a string containing the html one-liner ;-)
– DominikGuzei
Oct 29 '12 at 10:11
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JavaScript OOP in NodeJS: how?
...onstructor.apply( this, arguments );
}
//Pointless override to show super calls
//note that for performance (e.g. inlining the below is impossible)
//you should do
//method.$getAge = _super.getAge;
//and then use this.$getAge() instead of super()
method.getAge = function() {
return _super.getAge...
python-pandas and databases like mysql
...ndas as pd
import cx_Oracle
ora_conn = cx_Oracle.connect('your_connection_string')
df_ora = pd.read_sql('select * from user_objects', con=ora_conn)
print 'loaded dataframe from Oracle. # Records: ', len(df_ora)
ora_conn.close()
And here is the equivalent example for MySQLdb:
import MySQLdb
m...