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Drawing an SVG file on a HTML5 canvas
...ge();
img.onload = function() {
ctx.drawImage(img, 0, 0);
}
img.src = "http://upload.wikimedia.org/wikipedia/commons/d/d2/Svg_example_square.svg";
Live example here. You should see a green square in the canvas. The second green square on the page is the same <svg> element inserted into th...
In Windows cmd, how do I prompt for user input and use the result in another command?
...
The syntax is as such: set /p variable=[string]
Check out http://commandwindows.com/batch.htm or http://www.robvanderwoude.com/userinput.php for a more deep dive into user input with the different versions of Windows OS batch files.
Once you have set your variable, you can then go ...
What is the most effective way for float and double comparison?
...roblem, as long as you retain the license. I extracted the below code from http://code.google.com/p/googletest/source/browse/trunk/include/gtest/internal/gtest-internal.h https://github.com/google/googletest/blob/master/googletest/include/gtest/internal/gtest-internal.h and added the license on top....
socket.emit() vs. socket.send()
...ta) {
console.log(data);
});
});
client:
var socket = io.connect('http://localhost');
socket.on('news', function (data) {
console.log(data);
socket.emit('my other event', { my: 'data' });
});
Socket.send does the same, but you don't register to 'news' but to message:
server:
var io ...
What happens if i return before the end of using statement? Will the dispose be called?
...ll be disposed of regardless of the completion path.
Further reading...
http://aspadvice.com/blogs/name/archive/2008/05/22/Return-Within-a-C_2300_-Using-Statement.aspx
http://csharpfeeds.com/post/8451/Return_Within_a_Csharp_Using_Statement.aspx
...
bundle install fails with SSL certificate verification error
...the top of the Gemfile in your rails application directory change
source 'https://rubygems.org'
to
source 'http://rubygems.org'
note that the second version is http instead of https
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impr...
How can I pretty-print JSON in a shell script?
...
if the JSON is from an internet source such as an API, you can use
curl http://my_url/ | python -m json.tool
For convenience in all of these cases you can make an alias:
alias prettyjson='python -m json.tool'
For even more convenience with a bit more typing to get it ready:
prettyjson_s()...
Detect when an image fails to load in Javascript
...on imageNotFound() {
alert('That image was not found.');
}
testImage("http://foo.com/bar.jpg");
And my sympathies for the jQuery-resistant boss!
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AngularJS $resource RESTful example
...y of the default features of $resource, you should probably just be using $http on it's own.
Update: Angular 1.2 and Promises
As of Angular 1.2, resources support promises. But they didn't change the rest of the behavior.
To leverage promises with $resource, you need to use the $promise property ...
Center a popup window on screen?
...
SINGLE/DUAL MONITOR FUNCTION (credit to http://www.xtf.dk - thank you!)
UPDATE: It will also work on windows that aren't maxed out to the screen's width and height now thanks to @Frost!
If you're on dual monitor, the window will center horizontally, but not verti...