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How do I calculate the normal vector of a line segment?
...have a line segment going from (x1,y1) to (x2,y2). How do I calculate the normal vector perpendicular to the line?
4 Answer...
How to detect the currently pressed key?
In Windows Forms , you can know, at any time, the current position of the cursor thanks to the Cursors class.
11 Answers...
Calculate a percent with SCSS/SASS
...t to set a width in percentage in scss via calculation, but it gives me errors..
3 Answers
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Check whether HTML element has scrollbars
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I found this somewhere a couple of weeks ago. It worked for me.
var div = document.getElementById('container_div_id');
var hasHorizontalScrollbar = div.scrollWidth > div.clientWidth;
var hasVerticalScrollbar = div.scrollHeight > div.clientHeight;
/* you'll get true/...
Doctrine 2 can't use nullable=false in manyToOne relation?
...hould own the relation. Relation is bidirectional, so a Package has zero or more users in it.
1 Answer
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Docker how to change repository name or rename image?
I'm trying to change repository name of the image:
7 Answers
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What to add for the update portion in ConcurrentDictionary AddOrUpdate
...e reviewed some examples but I am still having trouble implementing the AddOrUpdate function. This is the original code:
4 ...
What goes into your .gitignore if you're using CocoaPods?
I've been doing iOS development for a couple of months now and just learned of the promising CocoaPods library for dependency management.
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Is it possible to create a “weak reference” in javascript?
...escribes them in Java. Can anyone think of a way to implement this behavior in javascript?
9 Answers
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How can I debug my JavaScript code? [closed]
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Firebug is one of the most popular tools for this purpose.
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