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What algorithms compute directions from point A to point B on a map?
... start at each end, and expand both sides until they meet in the middle. This eliminates roughly half the work (2*pi*(r/2)^2 vs pi*r^2).
To avoid exploring the back-alleys of every city between your source and destination, you can have several layers of map data: A 'highways' layer that contains onl...
Set cellpadding and cellspacing in CSS?
In an HTML table, the cellpadding and cellspacing can be set like this:
28 Answers
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How to resolve merge conflicts in Git?
...s a bit of hand editing afterwards, but usually it's enough by itself. It is much better than doing the whole thing by hand certainly.
As per @JoshGlover comment:
The command
doesn't necessarily open a GUI unless you install one. Running git mergetool for me resulted in vimdiff being used. You can...
Best practices for SQL varchar column length [closed]
Every time is set up a new SQL table or add a new varchar column to an existing table, I am wondering one thing: what is the best value for the length .
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What is the most efficient way to deep clone an object in JavaScript?
What is the most efficient way to clone a JavaScript object? I've seen obj = eval(uneval(o)); being used, but that's non-standard and only supported by Firefox . I've done things like obj = JSON.parse(JSON.stringify(o)); but question the efficiency. I've also seen recursive copying funct...
What is the difference between a User Control Library and a Custom Control Library?
...c and representation must be implemented inside the code.
A user control is technically a normal content control which you can extend in some parts in the code but usually it is extended by placing other controls inside it. So as Kent mentioned a UserControl is an aggregation of other controls. Th...
How to get input type using jquery?
..., and I need to get the values depending on the input type. So if the type is a radio, I need to get which is checked, and if it is a checkbox I need to now which are checked, and if it is a drop down I need to know which is selected, and I if it is a text/textarea I need to know the values.
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How do I check if the mouse is over an element in jQuery?
Is there a quick & easy way to do this in jQuery that I'm missing?
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How to set a default entity property value with Hibernate
...inition = "int default 100")
Notice that the string in columnDefinition is database dependent. Also if you choose this option, you have to use dynamic-insert, so Hibernate doesn't include columns with null values on insert. Otherwise talking about default is irrelevant.
But if you don't want dat...
Performance difference between IIf() and If
In Visual Basic, is there a performance difference when using the IIf function instead of the If statement?
9 Answers
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