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Convert base64 string to ArrayBuffer
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edited Oct 30 '19 at 11:00
Massimiliano Kraus
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How can I increment a char?
...ord('c') + 1
100
>>> chr(ord('c') + 1)
'd'
>>>
Python 3.x makes this more organized and interesting, due to its clear distinction between bytes and unicode. By default, a "string" is unicode, so the above works (ord receives Unicode chars and chr produces them).
But if you're i...
How do I draw a grid onto a plot in Python?
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223
You want to use pyplot.grid:
x = numpy.arange(0, 1, 0.05)
y = numpy.power(x, 2)
fig = plt.figu...
Sprintf equivalent in Java
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Dave Jarvis
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answered Sep 5 '08 at 23:06
Eugene YokotaEug...
Create a GUID in Java
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355
Have a look at the UUID class bundled with Java 5 and later.
For example:
If you want a ra...
Modular multiplicative inverse function in Python
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131
Maybe someone will find this useful (from wikibooks):
def egcd(a, b):
if a == 0:
r...
MySQL ON DUPLICATE KEY UPDATE for multiple rows insert in single query
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3 Answers
3
Active
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Mocking objects with Moq when constructor has parameters
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34
The last line is giving you a real instance because you are using the new keyword, not mocking ...
How can I list all collections in the MongoDB shell?
...e:
$ mongo prodmongo/app --eval "show collections"
MongoDB shell version: 3.2.10
connecting to: prodmongo/app
2016-10-26T19:34:34.886-0400 E QUERY [thread1] SyntaxError: missing ; before statement @(shell eval):1:5
$ mongo prodmongo/app --eval "db.getCollectionNames()"
MongoDB shell version: 3....
Else clause on Python while statement
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396
The else clause is only executed when your while condition becomes false. If you break out of...