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What's the difference between “git reset” and “git checkout”?
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git reset is specifically about updating the index, moving the HEAD.
git checkout is about updating the working tree (to the index or the specified tree). It will update the HEAD only if you checkout a branch (if not, you end up with a detached H...
Difference between thread's context class loader and normal classloader
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Indeed, not all classloaders have a classpath. When wrote "ClassB needs to be on the classpath of the classloader of ClassA", I meant "ClassB needs to loadable by the classloader of ClassA". 90% of the time they mean the same. But if ...
How can I change the color of my prompt in zsh (different from normal text)?
...n on red foreground) and \e[0m (turn off character attributes). These are called escape sequences. Different escape sequences give you different results, from absolute cursor positioning, to color, to being able to change the title bar of your window, and so on.
For more on escape sequences, see th...
Select records from NOW() -1 Day
... MySQL statement to order records (through a date stamp) by >= NOW() -1 so all records from the day before today to the future are selected?
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How can I keep my branch up to date with master with git?
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Assuming you're fine with taking all of the changes in master, what you want is:
git checkout <my branch>
to switch the working tree to your branch; then:
git merge master
to merge all the changes in master with yours.
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Undo “git add ”?
...oing this, do a git status folder, and make sure it says that it 'deleted' all the files on that folder
– Bengalaa
Nov 24 '16 at 0:52
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How can I brew link a specific version?
...n>
Example:
brew switch mysql 5.5.29
You can find the versions installed on your system with info.
brew info mysql
And to see the available versions to install, you can provide a dud version number, as brew will helpfully respond with the available version numbers:
brew switch mysql 0
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How do I handle newlines in JSON?
...N spec at ietf.org/rfc/rfc4627.txt contains this sentence in section 2.5: "All Unicode characters may be placed within the quotation marks except for the characters that must be escaped: quotation mark, reverse solidus, and the control characters (U+0000 through U+001F)." Since a newline is a contro...
Should an Enum start with a 0 or a 1?
...nes:
✔️ DO provide a value of zero on simple enums.
Consider calling the value something like "None." If such a value is not appropriate for this particular enum, the most common default value for the enum should be assigned the underlying value of zero.
Framework Design Guidelines / ...
Best way to remove from NSMutableArray while iterating?
.... That may be true (although what about the memory and processing cost of allocating a new array, and discarding the old one?) but even if it's faster it may not be as big a deal as it would be for a naive implementation, because NSArrays do not behave like "normal" arrays. They talk the talk but ...