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Get the last item in an array
... anArray.pop();
Important : This returns the last element and removes it from the array
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Django template tag to truncate text
...at add "..." to the end of (last word of) the (truncated) string as well:
from django import template
register = template.Library()
@register.filter("truncate_chars")
def truncate_chars(value, max_length):
if len(value) > max_length:
truncd_val = value[:max_length]
if not le...
How to write a JSON file in C#?
... as well as benchmark tests .
Below is a graph of performance taken from the linked article:
This separate post, states that:
Json.NET has always been memory efficient, streaming the reading and writing large documents rather than loading them entirely into memory, but I was able to fi...
Configure apache to listen on port other than 80
...mpp, Appserv. All I have done is compiling apache, tomcat and jk connector from source and trying my best to make them work together.
– vivek.m
Oct 15 '10 at 11:06
...
git checkout tag, git pull fails in branch
...ame problem and fixed it with this command:
$ git push -u origin master
From the help file the -u basically sets the default for pulls:
-u, --set-upstream`
For every branch that is up to date or successfully pushed, add
upstream (tracking) reference, used by argument-less git-pull(1) and
...
How do I debug an MPI program?
...ce Analysis Tool (STAT). We use this at Livermore to collect stack traces from potentially hundreds of thousands of running processes and to represent them intelligently to users. It's not a full-featured debugger (a full-featured debugger would never scale to 208k cores), but it will tell you whi...
What is the source code of the “this” module doing?
...
@OllieFord: As a joke. Everything the module does, from obfuscating the source code to implementing rot13 from scratch even though it's built into the stdlib, directly violates the Zen of Python. Tim Peters also snuck some subtle jokes into the Zen itself (notice the dashes o...
How do I clone a Django model instance object and save it to the database?
...objects one by one. If you don't want the call to the database, just do:
from copy import deepcopy
new_instance = deepcopy(object_you_want_copied)
new_instance.id = None
new_instance.save()
It does the same thing as some of these other answers, but it doesn't make the database call to retrieve ...
How do I discard unstaged changes in Git?
...urrent index for the current directory, throwing away all changes in files from the current directory downwards.
git checkout .
or this which checks out all files from the index, overwriting working tree files.
git checkout-index -a -f
...
How to execute multi-line statements within Python's own debugger (PDB)
...eems the same can be achieved using the pdb interact command (as I learned from this bug tracker message).
– gerrit
Jun 11 '14 at 15:15
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