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How to remove a field completely from a MongoDB document?
... looks like this:
{
name: 'book',
tags: [
{
words: ['abc','123'],
lat: 33,
long: 22
}, {
words: ['def','456'],
lat: 44,
long: 33
}
]
}
To remove the column words from the embedded document, do this:
db.example.update(
{'tags': {'$exists':...
How to toggle a value in Python
...n using itertools
If you have more than two values, the itertools.cycle() function provides a generic fast way to toggle between successive values:
>>> import itertools
>>> toggle = itertools.cycle(['red', 'green', 'blue']).next
>>> toggle()
'red'
>>> toggle()
'...
How can I convert byte size into a human-readable format in Java?
...
Fun fact: The original snippet posted here was the most copied Java snippet of all time on Stack Overflow, and it was flawed. It was fixed, but it got messy.
Full story in this article: The most copied Stack Overflow snippet ...
Fast permutation -> number -> permutation mapping algorithms
I have n elements. For the sake of an example, let's say, 7 elements, 1234567. I know there are 7! = 5040 permutations possible of these 7 elements.
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Why do I need to do `--set-upstream` all the time?
... master [enter/↑/↓/ctrl+c]
Counting objects: 9, done.
...
Also, it's fun to type swear words in your terminal.
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The source was not found, but some or all event logs could not be searched
...edited Feb 2 '15 at 16:07
Rizier123
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answered Feb 2 '15 at 15:47
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HttpWebRequest using Basic authentication
... BASE64({USERNAME:PASSWORD})"
String username = "abc";
String password = "123";
String encoded = System.Convert.ToBase64String(System.Text.Encoding.GetEncoding("ISO-8859-1").GetBytes(username + ":" + password));
httpWebRequest.Headers.Add("Authorization", "Basic " + encoded);
Edit
Switched the e...
Parse JSON in TSQL
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This is some great functionality but does have some limitations e.g. stripping the "-" from negative numbers.
– Gavin
Apr 25 '12 at 22:02
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Difference between CSS3 transitions' ease-in and ease-out
...SS3's transitions and animations support easing, formally called a "timing function". The common ones are ease-in, ease-out, ease-in-out, ease, and linear, or you can specify your own using cubic-bezier().
ease-in will start the animation slowly, and finish at full speed.
ease-out will start the a...
Is there a Subversion command to reset the working copy?
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vcsjonesvcsjones
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