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Can I use if (pointer) instead of if (pointer != NULL)?
Is it safe to check a pointer to not being NULL by writing simply if(pointer) or do I have to use if(pointer != NULL) ?
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Need a simple explanation of the inject method
...'s another simple example to create a hash from an array of objects, keyed by their string representation:
[1,"a",Object.new,:hi].inject({}) do |hash, item|
hash[item.to_s] = item
hash
end
In this case, we are defaulting our accumulator to an empty hash, then populating it each time the block...
Pretty printing XML in Python
....minidom's toprettyxml() now produces output like '<id>1</id>' by default, for nodes that have exactly one text child node.
– Marius Gedminas
Jul 12 '13 at 14:00
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How to print HTML content on click of a button, but not the page? [duplicate]
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function printDiv(divName) {
var printContents = document.getElementById(divName).innerHTML;
var originalContents = document.body.innerHTML;
document.body.innerHTML = printContents;
window.print();
document.body.innerHTML = originalContents;
}
SOURCE : SO Answer
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Create instance of generic type whose constructor requires a parameter?
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I would think static interfaces could be added by a language compiler without changes to the runtime, though it would be good to have language teams coordinate on the particulars. Specify that every class claiming to implement a static interface must contain a nested cla...
How to remove all namespaces from XML with C#?
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Need to add (from a in e.Attributes().DistinctBy(x => x.Name.LocalName) for case lang=""ru-ru"" xml:lang=""ru-ru""
– smg
Oct 27 '15 at 14:42
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How to calculate a mod b in Python?
...ered Dec 22 '16 at 1:54
UnsignedByteUnsignedByte
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Is calculating an MD5 hash less CPU intensive than SHA family functions?
...5 407
SHA-1 312
SHA-256 148
SHA-512 189
Figures are in megabytes per second, for a "long" message (this is what you get for messages longer than 8 kB). This is with sphlib, a library of hash function implementations in C (and Java). All implementations are from the same author (me) a...
Action Image MVC3 Razor
...cause I'm using Areas a reference to the class's namespace (as pointed out by Umar) needs to be added to ALL web.config files in the Views folder for all Areas as well as the top level /Views folder
– Mark_Gibson
Apr 3 '12 at 11:03
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How to move a file?
...example if you only want to move images, then you use the pattern '*.jpg', by default, it moves everything in the directory
import os, shutil, pathlib, fnmatch
def move_dir(src: str, dst: str, pattern: str = '*'):
if not os.path.isdir(dst):
pathlib.Path(dst).mkdir(parents=True, exist_o...