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What is the optimal algorithm for the game 2048?
...empty position with a value of either 2 or 4 . The game terminates when all the boxes are filled and there are no moves that can merge tiles, or you create a tile with a value of 2048 .
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dplyr summarise: Equivalent of “.drop=FALSE” to keep groups with zero length in output
...e to go with @Moody_Mudskipper's answer: Using .drop=FALSE can give potentially unexpected results when one or more grouping variables are not coded as factors. See examples below:
library(dplyr)
data(iris)
# Add an additional level to Species
iris$Species = factor(iris$Species, levels=c(levels(ir...
How can I ignore everything under a folder in Mercurial
I am looking for an expression for the .hgignore file, to ignore all files beneath a specified folder.
6 Answers
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Which browsers support ?
... first part works on browsers without support for <script async.. tags, allowing them to load async with a "hack" (although a pretty solid one), and also allows rendering the page without waiting for ga.js to be retrieved.
The second part only affects compatible browsers that understand the a...
Can't use NVM from root (or sudo)
...n/{bin,lib,share} /usr/local
The above command is a bit complicated, but all it's doing is copying whatever version of node you have active via nvm into the /usr/local/ directory (where user installed global files should live on a linux VPS) and setting the permissions so that all users can access...
Git: Recover deleted (remote) branch
...ings, otherwise you are bound to run into the problem again (or unintentionally clobber commits pushed from other repos).
– Chris Johnsen
Jan 3 '10 at 5:27
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What is the difference between Gemfile and Gemfile.lock in Ruby on Rails
...emfile.lock file is where Bundler records the exact versions that were installed. This way, when the same library/project is loaded on another machine, running bundle install will look at the Gemfile.lock and install the exact same versions, rather than just using the Gemfile and installing the most...
eclipse stuck when building workspace
...you'll probably need to include more info about which plugins you have installed and which projects you have. Can you create a minimal workspace which reproduces the problem?
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Is using 'var' to declare variables optional? [duplicate]
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@codemeit : javascript is full of pitfalls like this, but all in all it's a beautiful and very pleasant language. Don't hate it. Just know the pitfalls and leave them out of your code.
– Stefano Borini
Mar 21 '10 at 1:25
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The bare minimum needed to write a MSMQ sample application
...even one full chapter of a book about Message Queue...But for a quick test all I need is to cover is this scenario, not even in a perfect way, just for a quick demo:
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