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How does “304 Not Modified” work exactly?
My guess, if it's generated by the browser:
2 Answers
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How do I erase an element from std::vector by index?
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With advance you must save the iterator in a variable. If you use std::next you can do it in one line: vec.erase( next(begin(vec), 123) );
– dani
Oct 5 '16 at 20:36
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range over interface{} which stores a slice
...iven the scenario where you have a function which accepts t interface{} . If it is determined that the t is a slice, how do I range over that slice?
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In mongoDb, how do you remove an array element by its index?
...he comments this approach is not atomic and can cause some race conditions if other clients read and/or write between the two operations. If we need the operation to be atomic, we could:
Read the document from the database
Update the document and remove the item in the array
Replace the document i...
python assert with and without parenthesis
...ing (SyntaxWarning: assertion is always true, perhaps remove parentheses?) if you ran it through a full interpreter, not through IDLE. Because assert is a keyword and not a function, you are actually passing in a tuple as the first argument and leaving off the second argument.
Recall that non-empt...
MySQL dump by query
...able" -u myuser -pxxxxxxxxx mydatabase
you can redirect it out to a file if you want :
mysql -e "select * from myTable" -u myuser -pxxxxxxxx mydatabase > mydumpfile.txt
Update:
Original post asked if he could dump from the database by query. What he asked and what he meant were different. H...
Proper usage of Optional.ifPresent()
I am trying to understand the ifPresent() method of the Optional API in Java 8.
5 Answers
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Relationship between hashCode and equals method in Java [duplicate]
...hash tables, and hash buckets are a function of the object's .hashCode().
If you have two objects which are .equals(), but have different hash codes, you lose!
The part of the contract here which is important is: objects which are .equals() MUST have the same .hashCode().
This is all documented i...
Link to the issue number on GitHub within a commit message
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If you want to link to a GitHub issue and close the issue, you can provide the following lines in your Git commit message:
Closes #1.
Closes GH-1.
Closes gh-1.
(Any of the three will work.) Note that this will link to the ...
What is the difference between “git branch” and “git checkout -b”?
... I think that git branch does the same thing.
How do these two commands differ, if they differ at all?
7 Answers
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