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What is the difference between Non-Repeatable Read and Phantom Read?
...at user A has queried has a different value the second time.
Phantom read: All the rows in the query have the same value before and after, but different rows are being selected (because B has deleted or inserted some). Example: select sum(x) from table; will return a different result even if none of...
Ruby class instance variable vs. class variable
...n store something common to that class without having sub-classes automatically also get them (and vice-versa). With class variables, you have the convenience of not having to write self.class from an instance object, and (when desirable) you also get automatic sharing throughout the class hierarchy...
Can I make a function available in every controller in angular?
If I have a utility function foo that I want to be able to call from anywhere inside of my ng-app declaration. Is there someway I can make it globally accessible in my module setup or do I need to add it to the scope in every controller?
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How to color the Git console?
...obal color.ui auto
The color.ui is a meta configuration that includes all the various color.* configurations available with git commands. This is explained in-depth in git help config.
So basically it's easier and more future proof than setting the different color.* settings separately.
In-d...
When to use an object instance variable versus passing an argument to the method
...sus simply declaring them as object instance variables that are visible to all of the object's methods?
5 Answers
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In git, is there a way to show untracked stashed files without applying the stash?
...an stash untracked files. However, said untracked files don't show up at all with git stash show stash@{0} . Is there any way to show untracked stashed files without applying the stash?
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Disable Laravel's Eloquent timestamps
...this moment we don't want to add the updated_at / created_at fields to all of our tables as we have a logging class that does all this in more depth for us already.
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How to delete .orig files after merge from git repository?
... It's a pain that git clean -df doesn't do it. Why should we have to manually clean up garbage that it leaves behind?
– Sridhar Sarnobat
Apr 13 '18 at 0:01
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What's the difference between Cache-Control: max-age=0 and no-cache?
... request
without successful revalidation with
the origin server. This allows an
origin server to prevent caching even
by caches that have been configured to
return stale responses to client
requests.
In other words, caches may sometimes choose to use a stale response (although I belie...
What is the fastest way to compare two sets in Java?
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firstSet.equals(secondSet)
It really depends on what you want to do in the comparison logic... ie what happens if you find an element in one set not in the other? Your method has a void return type so I assume you'll do the necessary work in this method.
M...