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“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP
...e of an uninitialized variable is problematic in the case of including one file into another which uses the same variable name. It is also a major security risk with register_globals turned on. E_NOTICE level error is issued in case of working with uninitialized variables, however not in the case of...
node.js, Error: Cannot find module 'express'
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You should point out that this requires a package list file ie .json.. And this is not always the case.
– Pogrindis
Nov 7 '13 at 11:11
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How to list of all the tables defined for the database when using active record?
...way, but here is how I solved my problem:
Dir["app/models/*.rb"].each do |file_path|
require file_path # Make sure that the model has been loaded.
basename = File.basename(file_path, File.extname(file_path))
clazz = basename.camelize.constantize
clazz.find(:all).each do |rec|
# I...
Running SSH Agent when starting Git Bash on Windows
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In a git bash session, you can add a script to ~/.profile or ~/.bashrc (with ~ being usually set to %USERPROFILE%), in order for said session to launch automatically the ssh-agent. If the file doesn't exist, just create it.
This is what GitHub describes in "Working with SSH k...
SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”
...a dependency.
As a result I've added the slf4j-api.jar (1.6) jar to my war file bundle.
31 Answers
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Advantages of Antlr (versus say, lex/yacc/bison) [closed]
...ce you have a conflict free grammar, you can let ANTLRworks parse an input file of your language and build a parse tree and AST for you and show the tree graphically in the IDE. This is a very big advantage because it can save you many hours of work: You will find conceptual errors in your language ...
In Docker, what's the difference between a container and an image? [duplicate]
...ubuntu'. Let's run bash interactively within the ubuntu image and create a file. We'll use the -i and -t flags to give us an interactive bash shell.
$ docker run -i -t ubuntu /bin/bash
root@48cff2e9be75:/# ls
bin boot dev etc home lib lib64 media mnt opt proc root run sbin srv sys ...
How can I remove a commit on GitHub? [duplicate]
...to local repository:
git stash apply
7 - In case you have untracked/new files in the changes, you need to add them to git before committing:
git add .
6 - Add whatever extra changes you need, then commit the needed files, (or use a dot '.' instead of stating each file name, to commit all files...
New to MongoDB Can not run command mongo
... or better to define it as a configuration value within your configuration file then use it as mongod -f C:\path\to\your\mongodb.conf.
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Ideal Ruby project structure
...push any directory you want onto that using the $: variable. i.e.
$:.push File.expand_path(File.dirname(__FILE__) + '/../surfcompstuff')
That means when you have say, surfer.rb in that dir, you can require "surfer" anywhere and the file will be found.
Also, as a convention, classes and singleton...