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How efficient can Meteor be while sharing a huge collection among many clients?
...e, each client caused an additional ~60MB of memory usage, even though the raw data transferred was only about 5MB.
In our case, because the collection was static, we solved this problem by sending all the documents as a .json file, which was gzipped by nginx, and loading them into an anonymous col...
Easy way to test a URL for 404 in PHP?
...
I found this answer here:
if(($twitter_XML_raw=file_get_contents($timeline))==false){
// Retrieve HTTP status code
list($version,$status_code,$msg) = explode(' ',$http_response_header[0], 3);
// Check the HTTP Status code
switch($status_code) {
...
How do I find Waldo with Mathematica?
...pick out the pixels in the image with a sufficiently high correlation and draw white circle around them to emphasize them using Dilation
pos = Dilation[ColorNegate[Binarize[corr, .12]], DiskMatrix[30]];
I had to play around a little with the level. If the level is too high, too many false positiv...
A cron job for rails: best practices?
... NB: these days I'm using whenever (see Jim Garvin's answer), but a raw cron entry to run rake task would be something like: 30 4 * * * /bin/bash -l -c 'cd /opt/railsapp && RAILS_ENV=production rake cron --silent'
– tardate
Jul 12 '11 at 10:08
...
AngularJS : The correct way of binding to a service properties
...ed. And as far as decoupling the markup entirely from the data model, the drawbacks outweigh the advantages.
Controllers, in general shouldn't be littered with $scope = injectable.data.scalar's. Rather, they should be sprinkled with $scope = injectable.data's, promise.then(..)'s, and $scope.compl...
How to import CSV file data into a PostgreSQL table?
...re's some code that shows you how to set various options:
# Set it so the raw sql output is logged
import logging
logging.basicConfig()
logging.getLogger('sqlalchemy.engine').setLevel(logging.INFO)
df.to_sql("my_table_name2",
engine,
if_exists="append", #options are ‘fail...
GitHub relative link in Markdown file
...er relative links on the site.
October 12th, 2011:
If you look at the raw source of the README.md of Markdown itself(!), relative paths don't seem to be supported.
You will find references like:
[r2h]: http://github.com/github/markup/tree/master/lib/github/commands/rest2html
[r2hc]: http://git...
Secure hash and salt for PHP passwords
...nd 180 billion hashes/second (respectively).
Don't mix bcrypt and with the raw output of hash(), either use hex output or base64_encode it. (This applies to any input that may have a rogue \0 in it, which can seriously weaken security.)
Dos
Use scrypt when you can; bcrypt if you cannot.
Use PBKD...
Using success/error/finally/catch with Promises in AngularJS
...ta, status, headers, config))
for then(), you probably will deal with the raw response object.
such as posted in AngularJS $http API document
$http({
url: $scope.url,
method: $scope.method,
cache: $templateCache
})
.success(function(data, status) {
$scope.s...
Why does Python code use len() function instead of a length method?
...ike x*(a+b) into xa + xb to the clumsiness of doing the same thing using a raw OO notation.
(b) When I read code that says len(x) I know that it is asking for the length of something. This tells me two things: the result is an integer, and the argument is some kind of container. To the contrary, whe...