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What is the best way to uninstall gems from a rails3 project?
I installed all of my gems using bundler via the Gemfile. I thought (mistakenly) that if I deleted a gem from my Gemfile and ran 'bundle install' that the deleted gems would be uninstalled. I've looked at the bundler help file and, so far as I can tell, it does not have a way to uninstall gems.
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How to install GCC piece by piece with GMP, MPFR, MPC, ELF, without shared libraries?
How do I install GCC (the GNU Compiler Collection) piece by piece, using the current version,
using the correct versions of dependencies, not using a package manager (like yum, rpm, apt, dpkg), and not using shared libraries?
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Really killing a process in Windows
Occasionally a program on a Windows machine goes crazy and just hangs. So I'll call up the task manager and hit the "End Process" button for it. However, this doesn't always work; if I try it enough times then it'll usually die eventually, but I'd really like to be able to just kill it immediately...
How to uncommit my last commit in Git [duplicate]
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If you aren't totally sure what you mean by "uncommit" and don't know if you want to use git reset, please see "Revert to a previous Git commit".
If you're trying to understand git reset better, please see "Can you explain what "git reset" d...
What does Serializable mean?
...it is an interface that if implemented in a class, this class can automatically be serialized and deserialized by different serializers.
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What is the minimum valid JSON?
... or a JSONArray as specified by RFC 4627.
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This would mean that all JSON values (including strings, nulls and numbers) are accepted by the JSON object, even though the JSON object technically adheres to RFC 4627.
Note that you could therefore stringify a number in a conformant browser via...
release Selenium chromedriver.exe from memory
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per the Selenium API, you really should call browser.quit() as this method will close all windows and kills the process. You should still use browser.quit().
However: At my workplace, we've noticed a huge problem when trying to execute chromedriver...
Fixed Table Cell Width
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You could try using the <col> tag manage table styling for all rows but you will need to set the table-layout:fixed style on the <table> or the tables css class and set the overflow style for the cells
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/col
<table cl...
Difference between FetchType LAZY and EAGER in Java Persistence API?
...here's a relationship between them. For example, you might have an entity called University and another entity called Student and a University might have many Students:
The University entity might have some basic properties such as id, name, address, etc. as well as a collection property called stu...
Passing arrays as parameters in bash
...eing defined with local, because locals are visible to the functions they call.
The ! in ${!1} expands the arg 1 variable.
declare -a just makes the indexed array explicit, it is not strictly necessary.
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