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Does JSON syntax allow duplicate keys in an object?
...<a>x</a>
<a>y</a>
</object>
When this is converted into JSON, you get the following:
{
"object": {
"a": [
"x",
"y"
]
}
}
A natural mapping from a language that handles what you might call duplicate keys to another, can serve as a potential...
String to LocalDate
How can i convert a string to a LocalDate ?
5 Answers
5
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Django ManyToMany filter()
...[<id1>, <id2>, <id3>])
# and by zone object (object gets converted to pk under the covers)
users_in_zones = User.objects.filter(zones__in=[zone1, zone2, zone3])
The double underscore (__) syntax is used all over the place when working with querysets.
...
Get records with max value for each group of grouped SQL results
...nditions" be better put in the final WHERE condition list, in order to not introduce subqueries - which were not needed in the original @ axiac answer?
– tarilabs
Dec 14 '15 at 23:18
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Difference between open and codecs.open in Python
... not in range(128)
The advice about strings for input/ouput is normally "convert to unicode as early as possible and back to bytestrings as late as possible". Using codecs.open allows you to do the latter very easily.
Just be careful that you are giving it unicode strings and not bytestrings that...
How to make unicode string with python3
...
This how I solved my problem to convert chars like \uFE0F, \u000A, etc. And also emojis that encoded with 16 bytes.
example = 'raw vegan chocolate cocoa pie w chocolate &amp; vanilla cream\\uD83D\\uDE0D\\uD83D\\uDE0D\\u2764\\uFE0F Present Moment Ca...
equals vs Arrays.equals in Java
...ay2) is the same as array1 == array2, i.e. is it the same array. As @alf points out it's not what most people expect.
Arrays.equals(array1, array2) compares the contents of the arrays.
Similarly array.toString() may not be very useful and you need to use Arrays.toString(array).
...
How do I install imagemagick with homebrew?
...ick
Don't forget to install also gs which is a dependency if you want to convert pdf to images for example :
brew install ghostscript
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Pimpl idiom vs Pure virtual class interface
...pile-time dependencies. Often, it's not worth the bother. As you rightly point out, there's more syntactic overhead because you have to write forwarding methods for all of the public methods. For type 2 classes, I always use a pure abstract base class with associated factory method(s).
...
How do I output coloured text to a Linux terminal?
How do I print coloured characters to a Linux terminal that supports it?
13 Answers
13...