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How can I count the occurrences of a list item?
...at Counter is faster by a constant factor of approximately 2.
Here is the script I used:
from __future__ import print_function
import timeit
t1=timeit.Timer('Counter(l)', \
'import random;import string;from collections import Counter;n=1000;l=[random.choice(string.ascii_letters) f...
Check if a user has scrolled to the bottom
...as per the documentation from MDN, the simplest way is by using native javascript properties:
element.scrollHeight - element.scrollTop === element.clientHeight
Returns true when you're at the bottom of any scrollable element. So simply using javascript:
element.addEventListener('scroll', functio...
How to return only the Date from a SQL Server DateTime datatype
...sequent queries, so throw out execution #1 if you like.
Here is full test script and performance results that prove DateDiff is substantially faster than converting to varchar.
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How to run Gulp tasks sequentially one after the other
...g. return gulp.src('app/**/*.js').pipe(concat(app.js)).pipe(gulp.dest('app/scripts');, the key is to identify task one as a dependent when defining task two: gulp.task('two', ['one'], function() {... Task two will now wait for task one to end before running.
– esvendsen
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What are the most common SQL anti-patterns? [closed]
...
My favorite is when people embed HTML AND javascript, e.g. SELECT '<a href=... onclick="">' + name ' </a>'
– Matt Rogish
Jan 14 '09 at 17:19
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Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
I need to check a JavaScript array to see if there are any duplicate values. What's the easiest way to do this? I just need to find what the duplicated values are - I don't actually need their indexes or how many times they are duplicated.
...
Using curl to upload POST data with files
...pi.endpoint.post" the following vars posted. You can easily test with this script, and you should be receive this debugs on the function postFile() at the last row.
print_r($response); //print response
public function getPostFile()
{
echo "\n\n_SERVER\n";
echo "<pre>";
print_r($...
NGINX to reverse proxy websockets AND enable SSL (wss://)?
...NGINX config files so you can re-use them (that includes your init.d/nginx script)
yum install pcre pcre-devel openssl openssl-devel and any other necessary libs for building NGINX
Get the nginx_tcp_proxy_module from GitHub here https://github.com/yaoweibin/nginx_tcp_proxy_module and remember the fo...
MPICH vs OpenMPI
... brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 4...
Best practice for nested fragments in Android 4.0, 4.1 (
... brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 4...