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Preview an image before it is uploaded
...:
function readURL(input) {
if (input.files && input.files[0]) {
var reader = new FileReader();
reader.onload = function(e) {
$('#blah').attr('src', e.target.result);
}
reader.readAsDataURL(input.files[0]); // convert to base64 string
}
}
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What's the point of map in Haskell, when there is fmap?
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Matthias Braun
22.1k1616 gold badges104104 silver badges138138 bronze badges
answered Jul 26 '11 at 9:12
luquiluqui
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Using .sort with PyMongo
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207
sort should be a list of key-direction pairs, that is
db.test.find({"number": {"$gt": 1}}).sor...
ASP.NET MVC3 - textarea with @Html.EditorFor
I have ASP.NET MVC3 app and I have also form for add news. When VS2010 created default view I have only text inputs for string data, but I want to have textarea for news text. How I can do it with Razor syntax.
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How can I get the sha1 hash of a string in node.js?
...pto.createHash('sha1')
shasum.update('foo')
shasum.digest('hex') // => "0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33"
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node.js child process - difference between spawn & fork
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bjb568
9,3701111 gold badges4242 silver badges6464 bronze badges
answered Jul 25 '13 at 15:10
ChrisCMChrisCM
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Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
... use the disk to temporarily store messages if it runs out of RAM. After 2.0, Rabbit has significantly improved on its RAM usage. Clustering options are also available.
In regards to AMQP, I would say a really cool feature is the "exchange", and the ability for it to route to other exchanges. This...
method overloading vs optional parameter in C# 4.0 [duplicate]
...e for 'Optional parameters' in conjunction with 'Named Parameters' in C# 4.0 is that it presents us with an elegant alternative to method overloading where you overload method based on the number of parameters.
For example say you want a method foo to be be called/used like so, foo(), foo(1), foo(1...
When to use pip requirements file versus install_requires in setup.py?
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answered Aug 16 '11 at 21:04
Ian BickingIan Bicking
8,98666 gold badges2929 silver badges3232 bronze badges
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How to: Define theme (style) item for custom widget
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208
Yes, there's one way:
Suppose you have a declaration of attributes for your widget (in attrs.x...