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How to improve performance of ngRepeat over a huge dataset (angular.js)?
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The hottest - and arguably most scalable - approach to overcoming these challenges with large datasets is embodied by the approach of Ionic's collectionRepeat directive and of other implementations like it. A fancy term for this is ...
Efficient evaluation of a function at every cell of a NumPy array
Given a NumPy array A , what is the fastest/most efficient way to apply the same function, f , to every cell?
6 Ans...
What is the pythonic way to avoid default parameters that are empty lists?
...ing_list)
The docs say you should use None as the default and explicitly test for it in the body of the function.
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How to round the minute of a datetime object
...ed; thank you.
update 2019-12-27 = comment Bart incorporated; thank you.
Tested for date_delta of "X hours" or "X minutes" or "X seconds".
import datetime
def round_time(dt=None, date_delta=datetime.timedelta(minutes=1), to='average'):
"""
Round a datetime object to a multiple of a timed...
Parsing huge logfiles in Node.js - read in line-by-line
...tion can parse very large files, line by line using stream & pipe. For testing I used a 2.1 gb file with 17.000.000 records. Ram usage did not exceed 60 mb.
First, install the event-stream package:
npm install event-stream
Then:
var fs = require('fs')
, es = require('event-stream');
va...
What's the best way to check if a file exists in C?
...g R_OK|W_OK)
Update: Note that on Windows, you can't use W_OK to reliably test for write permission, since the access function does not take DACLs into account. access( fname, W_OK ) may return 0 (success) because the file does not have the read-only attribute set, but you still may not have permis...
Can you “compile” PHP code and upload a binary-ish file, which will just be run by the byte code int
...ion was asked, Facebook launched HipHop for PHP which is probably the best-tested PHP compiler to date (seeing as it ran one of the world’s 10 biggest websites). However, Facebook discontinued it in favour of HHVM, which is a virtual machine, not a compiler.
Beyond that, googling PHP compiler tur...
Apache VirtualHost 403 Forbidden
I recently tried to set a test server up with Apache. The site must run under domain www.mytest.com . I always get a 403 Forbidden error. I am on Ubuntu 10.10 server edition. The doc root is under dir /var/www . The following are my settings:
...
What code analysis tools do you use for your Java projects? [closed]
... in the editor (screenshot) - the coverage is generated by running a JUnit test. This is really useful when you are trying to figure out which lines are covered in a particular class, or if you want to see just which lines are covered by a single test. This is much more user friendly and useful than...
jQuery .data() does not work, but .attr() does
...e by .attr('data-myvar', '') will not be seen by subsequent .data() calls. Test this out on jsfiddle.
To avoid this problem don't intermix .data and .attr() calls. Use one or the other.
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