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Finding all possible combinations of numbers to reach a given sum
How would you go about testing all possible combinations of additions from a given set N of numbers so they add up to a given final number?
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What happens when a duplicate key is put into a HashMap?
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Thanks from me as well! I did have to add a "remove" method to it to perform the same functionality as a normal Map but worked great!
– JGlass
Oct 16 '18 at 17:20
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How to repeat a “block” in a django template
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Titles should be set from within the templates, not be provided by the context, you need to had a way to define this "title" variable, otherwise this is not a good solution.
– Guillaume Esquevin
Sep 22 '10 a...
What is the purpose of double curly braces in React's JSX syntax?
From the react.js tutorial we see this usage of double curly braces:
7 Answers
7
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How can I have a newline in a string in sh?
...$ echo "$STR" # quotes are required here!
Hello
World
Here is an excerpt from the Bash manual page:
Words of the form $'string' are treated specially. The word expands to
string, with backslash-escaped characters replaced as specified by the
ANSI C standard. Backslash escape sequenc...
How do I instantiate a Queue object in java?
...n the "Write your own implementation" before it which distances it further from the first listed (more common) alternatives.
– Edwin Buck
Jan 10 '11 at 4:51
1
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How to concatenate strings in django templates?
...s :
Create a file : <appname>\templatetags\<appname>_extras.py
from django import template
register = template.Library()
@register.filter
def addstr(arg1, arg2):
"""concatenate arg1 & arg2"""
return str(arg1) + str(arg2)
and then use it as @Steven says
{% load <appname&...
Python List vs. Array - when to use?
...s doubled when it runs out of space. Inserting an element into or removing from the middle of a Python list takes O(n) time because elements need to be shifted. For reference, see: wiki.python.org/moin/TimeComplexity
– geofflee
Nov 5 '17 at 1:17
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Removing white space around a saved image in matplotlib
... may even have modify this to keep fat lines near the limits of the figure from being shaved by the lack of margins.
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Google access token expiration time
When I obtain an access_token from the Google API, it comes with an expires_in value. According to the documentation, this value indicates "The remaining lifetime of the access token".
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