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What exactly does the “u” do? “git push -u origin master” vs “git push origin master”
...dahlbyk I've gone ahead and marked you as the answer, but that comment somewhat confuses me. In your answer, you demonstrated that git was confused after git push origin test (which doesn't have -u). You then showed that git push -u origin test removes the ambiguity. Is there a typo, or am I just be...
What is an idempotent operation?
What is an idempotent operation?
15 Answers
15
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jQuery Validate - require at least one field in a group to be filled
... Another thought: the 'fillone' class you show here could be problematic. What if, on the same form, you need to require at least one part number, AND at least one contact name? Your rule will allow 0 contact names as long as there's at least one part number. I think it's better to set rules like r...
Why should text files end with a newline?
...nate files such that
it puts each file’s start on a new line, which is what you want 95% of the time; but
it allows merging the last and first line of two files, as in the example above between b.txt and c.txt?
Of course this is solvable but you need to make the usage of cat more complex (by a...
Delete multiple records using REST
What is the REST-ful way of deleting multiple items?
5 Answers
5
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Android - Handle “Enter” in an EditText
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Here's what you do. It's also hidden in the Android Developer's sample code 'Bluetooth Chat'. Replace the bold parts that say "example" with your own variables and methods.
First, import what you need into the main Activity where y...
Python Pandas: Get index of rows which column matches certain value
...e mask is True by using np.flatnonzero. I've edited the post above to show what I mean.
– unutbu
Apr 21 '16 at 1:18
8
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Does Git Add have a verbose switch
...ugging an issue with git and needed some very verbose output to figure out what was going wrong. I ended up setting the GIT_TRACE environment variable:
export GIT_TRACE=1
git add *.txt
Output:
14:06:05.508517 git.c:415 trace: built-in: git add test.txt test2.txt
14:06:05.544890 git...
What does the X-SourceFiles header do?
....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f4851684%2fwhat-does-the-x-sourcefiles-header-do%23new-answer', 'question_page');
}
);
Post as a guest
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Is it possible to allow didSet to be called during initialization in Swift?
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I think I know what's happening here. By declaring someProperty as type: AnyObject! (an implicitly unwrapped optional), you allow self to fully initialize without someProperty being set. When you call setSomeProperty(someProperty) you're c...