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Convert to binary and keep leading zeros in Python
...mat(bin(num)[2:])
Demo:
print binary(1)
Output:
'0b00000001'
EDIT:
based on @Martijn Pieters idea
def binary(num, length=8):
return format(num, '#0{}b'.format(length + 2))
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impr...
HTML text input allow only numeric input
...alue); // Allow digits and '.' only, using a RegExp
});
See the JSFiddle demo for more input filter examples. Also note that you still must do server side validation!
TypeScript
Here is a TypeScript version of this.
function setInputFilter(textbox: Element, inputFilter: (value: string) => bo...
Omitting all xsi and xsd namespaces when serializing an object in .NET?
...eed
public NoNamespaceXmlWriter(System.IO.TextWriter output)
: base(output) { Formatting= System.Xml.Formatting.Indented;}
public override void WriteStartDocument () { }
public override void WriteStartElement(string prefix, string localName, string ns)
{
base.WriteS...
Find out what process registered a global hotkey? (Windows API)
...o right, etc. A simple app then calls the DLL and reports back its results based on a TTimer event. If you're interested I can post the Delphi 2007 based code.
It's well documented and commented and you potentially could use it as a basis of working out where a key press is going. If you could get ...
Node.js + Nginx - What now?
...d I want Node applications to be mounted to subfolders (i.e. http://myhost/demo/pet-project/) without introducing any configuration dependency to the application code.
At the same time I want other stuff like blog to run on the same web server.
Sounds simple huh? Apparently not.
In ma...
How to allow only numeric (0-9) in HTML inputbox using jQuery?
...lue); // Allow digits only, using a RegExp
});
});
See the JSFiddle demo for more input filter examples. Also note that you still must do server side validation!
Pure JavaScript (without jQuery)
jQuery isn't actually needed for this, you can do the same thing with pure JavaScript as well. S...
ArrayList vs List in C#
...ou can store an only value of Type T (string or int or employee or object) based on the declaration. (Note or)
Boxing and Unboxing will not happen.
Type safe.
It is newer.
Example:
ArrayList arrayList = new ArrayList();
List<int> list = new List<int>();
arrayList.Add(1);
arrayList.Ad...
How to create a UIView bounce animation?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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What are bitwise shift (bit-shift) operators and how do they work?
... of two that added together makes 320:
(row * 320) = (row * 256) + (row * 64)
Now we can convert that into left shifts:
(row * 320) = (row << 8) + (row << 6)
For a final result of:
memoryOffset = ((row << 8) + (row << 6)) + column
Now we get the same offset as before...
Is there a way to use SVG as content in a pseudo element :before or :after
... like fast loading and less requests AND we get IE8 support by using image/base64:
Codepen sample using SVG
HTML
<div class="div1"></div>
<div class="div2"></div>
CSS
.div1:after, .div2:after {
content: '';
display: block;
height: 80px;
width: 80px;
background...