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Responsive image map
I have an existing image map in a responsive html layout. Images scale according to browser size, but the image coordinates are obviously fixed pixel sizes. What options do I have to resize the image map coordinates?
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Mapping two integers to one, in a unique and deterministic way
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You're looking for a bijective NxN -> N mapping. These are used for e.g. dovetailing. Have a look at this PDF for an introduction to so-called pairing functions. Wikipedia introduces a specific pairing function, namely the Cantor pairing function:
Thr...
Python convert tuple to string
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Use str.join:
>>> tup = ('a', 'b', 'c', 'd', 'g', 'x', 'r', 'e')
>>> ''.join(tup)
'abcdgxre'
>>>
>>> help(str.join)
Help on method_descriptor:
join(...)
S.join(iterable) -> str
Return a string which is the concatenation of the strings i...
PDO Prepared Inserts multiple rows in single query
...ues Insert with PDO Prepared Statements
Inserting multiple values in one execute statement. Why because according to this page it is faster than regular inserts.
$datafields = array('fielda', 'fieldb', ... );
$data[] = array('fielda' => 'value', 'fieldb' => 'value' ....);
$data[] = array('...
What is the difference between Step Into and Step Over in the Eclipse debugger?
...llowing code with your current instruction pointer (the line that will be executed next, indicated by ->) at the f(x) line in g(), having been called by the g(2) line in main():
public class testprog {
static void f (int x) {
System.out.println ("num is " + (x+0)); // <- STEP INTO...
How to sum up an array of integers in C#
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The identity lambda isn't necessary. Except to confuse the new guy on the team.
– user1228
Mar 10 '10 at 18:23
12
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When is del useful in python?
... @JasonBaker: It's not only about the intent, those two syntaxes do two very different things.
– Pavel Šimerda
Sep 21 '14 at 7:28
2
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Laravel migration: unique key is too long, even if specified
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How to create a WPF UserControl with NAMED content
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The answer is to not use a UserControl to do it.
Create a class that extends ContentControl
public class MyFunkyControl : ContentControl
{
public static readonly DependencyProperty HeadingProperty =
DependencyProperty.Register("Heading", typeof(string),
typeof(HeadingContai...