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How to read lines of a file in Ruby
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Sadly, there’s nothing like the universal newlines in Python, at least that I know of.
– Josh Lee
May 16 '11 at 3:40
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When should null values of Boolean be used?
...ent Database boolean values, which may be true, false or null
to represent XML Schema's xsd:boolean values declared with xsd:nillable="true"
to be able to use generic types: List<Boolean> - you can't use List<boolean>
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How to write DataFrame to postgres table?
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For Python 2.7 and Pandas 0.24.2 and using Psycopg2
Psycopg2 Connection Module
def dbConnect (db_parm, username_parm, host_parm, pw_parm):
# Parse in connection information
credentials = {'host': host_parm, 'database': ...
Save bitmap to location
...Stream(file);
will throw exception without permission in AndroidManifest.xml (at least in os2.2):
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
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improv...
Simple regular expression for a decimal with a precision of 2
...left it as [0-9] as I think it's easier to read.
Also, here is the simple Python script I used to check it:
import re
deci_num_checker = re.compile(r"""^[0-9]+(\.[0-9]{1,2})?$""")
valid = ["123.12", "2", "56754", "92929292929292.12", "0.21", "3.1"]
invalid = ["12.1232", "2.23332", "e666.76"]
ass...
Change a Django form field to a hidden field
... This is the best answer IMHO. I've always hated using my "controller" Python code to determine the display of a form field.
– trpt4him
Jun 29 '18 at 13:27
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Performance of Java matrix math libraries? [closed]
...The results are as follows.
Using multithreaded ATLAS with C/C++, Octave, Python and R, the time taken was around 4 seconds.
Using Jama with Java, the time taken was 50 seconds.
Using Colt and Parallel Colt with Java, the time taken was 150 seconds!
Using JBLAS with Java, the time taken was agai...
What is REST? Slightly confused [closed]
...t is represented via some media type. Some examples of media types include XML, JSON, and RDF. Resources are manipulated by components. Components request and manipulate resources via a standard uniform interface. In the case of HTTP, this interface consists of standard HTTP ops e.g. GET, PUT, POST,...
What does “async: false” do in jQuery.ajax()?
...It seems async: false is dead, I tried it and got 18:17:49.384 Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user’s experience. For more help http://xhr.spec.whatwg.org/ 1 jquery.js:9061:4
– Aba
Jan ...