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Django template how to look up a dictionary value with a variable
...om django.template.defaulttags import register
...
@register.filter
def get_item(dictionary, key):
return dictionary.get(key)
(I use .get so that if the key is absent, it returns none. If you do dictionary[key] it will raise a KeyError then.)
usage:
{{ mydict|get_item:item.NAME }}
...
How do I fix “for loop initial declaration used outside C99 mode” GCC error?
...oo.c -o foo
REF: http://cplusplus.syntaxerrors.info/index.php?title='for'_loop_initial_declaration_used_outside_C99_mode
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How to change letter spacing in a Textview?
...oper.android.com/reference/android/widget/…
– Evin1_
Sep 20 '19 at 16:43
maybe add @Evin1_'s comment in ur answer
...
Difference between objectForKey and valueForKey?
...ng keys with NSString values on CALayers. Instruments showed that "CAObject_valueForKey" was 25% of total runtime (!)
– Adam
Jan 4 '13 at 2:30
2
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How to print the full NumPy array, without truncation?
...
Use numpy.set_printoptions:
import sys
import numpy
numpy.set_printoptions(threshold=sys.maxsize)
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Load local JSON file into variable
...nts:queue"
},
{
"id": "0.79281",
"name": " contents:mqq_error"
}
]
}
You also had an extra }.
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What is the difference between NTFS Junction Points and Symbolic Links?
... as Symlink is to Hardlink in Unix.
http://en.wikipedia.org/wiki/Symbolic_link#Windows_7_.26_Vista_symbolic_link
Windows 7 and Windows Vista support symbolic links for both files and directories with the command line utility mklink. Unlike junction points, a symbolic link can also point to a f...
Get keys from HashMap in Java
...
private Map<String, Integer> _map= new HashMap<String, Integer>();
Iterator<Map.Entry<String,Integer>> itr= _map.entrySet().iterator();
//please check
while(itr.hasNext())
{
...
Rename multiple files based on pattern in Unix
...tem afaik.
rename fgh jkl fgh*
ls | perl -ne 'chomp; next unless -e; $o = $_; s/fgh/jkl/; next if -e; rename $o, $_';
If you insist on using Perl, but there is no rename on your system, you can use this monster.
Some of those are a bit convoluted and the list is far from complete, but you will fi...
What is the difference between exit(0) and exit(1) in C?
...However, it's usage is non-portable.
Note that the C standard defines EXIT_SUCCESS and EXIT_FAILURE to return termination status from a C program.
0 and EXIT_SUCCESS are the values specified by the standard to indicate successful termination, however, only EXIT_FAILURE is the standard value for re...