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When to use inline function and when not to use it?
...f the library call the old implementation
when developing a library, in order to make a class extensible in the future you should:
add non-inline virtual destructor even if the body is empty
make all constructors non-inline
write non-inline implementations of the copy constructor and assignment...
Cannot simply use PostgreSQL table name (“relation does not exist”)
...its schema, the query will match that table name by checked each schema in order. Just like PATH in the shell or include_path in PHP, etc. You can check your current schema search path:
SHOW search_path
"$user",public
You can change your schema search path:
SET search_path TO showfinder,publ...
C# Lambda expressions: Why should I use them?
...e to turn C# expressions in to the SQL expressions desired for filtering / ordering / etc. on the server side.
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Idiomatic way to wait for multiple callbacks in Node.js
...hronous.
What is the idiomatic way to wait for all operations to finish in order to
know when the temp file can be deleted?
...
fatal: early EOF fatal: index-pack failed
... your global git configuration file, which is .gitconfig in $USER_HOME, in order to fix that problem.
[core]
packedGitLimit = 512m
packedGitWindowSize = 512m
[pack]
deltaCacheSize = 2047m
packSizeLimit = 2047m
windowMemory = 2047m
...
Redirect all output to file [duplicate]
...both stdout and stderr, you have to write the redirections in the opposite order from what works for files, cmd1 2>&1 | cmd2; putting the 2>&1 after the | will redirect stderr for cmd2 instead. If both stdout and stderr are redirected, a program can still access the terminal (if any) ...
Quickly reading very large tables as dataframes
...e end object is a data frame. So you have to convert it to a zoo object in order to use it with zoo. Look at the examples in the zoo docs for illustrations.
– JD Long
Apr 2 '13 at 12:48
...
Undefined method 'task' using Rake 0.9.0
...here is a problem in Rake 0.9.0. You need to temporarily downgrade Rake in order to avoid it:
run: gem uninstall rake -v 0.9 (add sudo unless you use rvm)
add to your Gemfile: gem 'rake', '~> 0.8.7'
and then run: bundle update
You can skip the first step, but then you have to run rake using b...
I need a Nodejs scheduler that allows for tasks at different intervals [closed]
...s and has high precision over time
Cron like, but not compatible (reversed order and other Improvements)
I works in the browser too
Install:
npm install timexe
use:
var timexe = require('timexe');
//Every 30 sec
var res1=timexe(”* * * * * /30”, function() console.log(“Its time again”)}...
How to use concerns in Rails 4
... the idea is to extract common and / or context specific chunks of code in order to clean up the models and avoid them getting too fat and messy.
As an example, I'll put one well known pattern, the taggable pattern:
# app/models/product.rb
class Product
include Taggable
...
end
# app/models/...