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PHP function overloading
...ion myFunc() {
for ($i = 0; $i < func_num_args(); $i++) {
printf("Argument %d: %s\n", $i, func_get_arg($i));
}
}
/*
Argument 0: a
Argument 1: 2
Argument 2: 3.5
*/
myFunc('a', 2, 3.5);
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...
How to save all the variables in the current python session?
...__, my_shelf, and imported modules can not be shelved.
#
print('ERROR shelving: {0}'.format(key))
my_shelf.close()
To restore:
my_shelf = shelve.open(filename)
for key in my_shelf:
globals()[key]=my_shelf[key]
my_shelf.close()
print(T)
# Hiya
print(val)
# [1, 2, 3]
...
String to LocalDate
How can i convert a string to a LocalDate ?
5 Answers
5
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Java 8 NullPointerException in Collectors.toMap
The Java 8 Collectors.toMap throws a NullPointerException if one of the values is 'null'. I don't understand this behaviour, maps can contain null pointers as value without any problems. Is there a good reason why values cannot be null for Collectors.toMap ?
...
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.
...
What's the result of += in C and C++?
...of an expression behaves unpredictably in all compilers due to the lack of intervening sequence point. If it were unspecified, it would behave predictably but differently on different compilers.
– Justin ᚅᚔᚈᚄᚒᚔ
May 18 '12 at 15:50
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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...
Providing a default value for an Optional in Swift?
...e if this does not match the Optional and the Optional is non-nil:
let x: Int?
let y = x.getOrElse(1.414) // y inferred as Double, assigned 1.414
let a: Int? = 5
let b: Double = a.getOrElse(3.14) // Runtime failure casting 5 to Double
...
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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