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What happens to C# Dictionary lookup if the key does not exist?
...{
// Key wasn't in dictionary; "value" is now 0
}
(Using ContainsKey and then the the indexer makes it look the key up twice, which is pretty pointless.)
Note that even if you were using reference types, checking for null wouldn't work - the indexer for Dictionary<,> will throw an excep...
How to run `rails generate scaffold` when the model already exists?
... you already have a model, you can still generate the necessary controller and migration files by using the rails generate option. If you run rails generate -h you can see all of the options available to you.
Rails:
controller
generator
helper
integration_test
mailer
migration
model
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What is the difference between the OAuth Authorization Code and Implicit workflows? When to use each
...horization Code flow there are 2 steps to get it:
User must authenticate and returns a code to the API consumer (called the "Client").
The "client" of the API (usually your web server) exchanges the code obtained in #1 for an access_token, authenticating itself with a client_id and client_secret
I...
How do I change the working directory in Python?
cd is the shell command to change the working directory.
14 Answers
14
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IE 8: background-size fix [duplicate]
...ze.js: a 1.5K jquery plugin that can be used as a IE8 fallback for "cover" and "contain" values. Have a look at the demo.
Solving your problem could be as simple as:
$("h2#news").css({backgroundSize: "cover"});
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Loop through properties in JavaScript object with Lodash
...
Yes you can and lodash is not needed... i.e.
for (var key in myObject.options) {
// check also if property is not inherited from prototype
if (myObject.options.hasOwnProperty(key)) {
var value = myObject.options[key];
}
}
E...
Create a shortcut on Desktop
...ortcut pointing to some EXE file, on the desktop, using .NET Framework 3.5 and relying on an official Windows API. How can I do that?
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Focus Input Box On Load
...<input type="text" autofocus>
You probably want to start with this and build onto it with JavaScript to provide a fallback for older browsers.
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Animation CSS3: display + opacity
...could add visibility: hidden; to .child / visibility:visible; to the hover and this should fix the screen reader problem
– csilk
Jan 12 '15 at 23:41
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How to change a TextView's style at runtime
I have an android app on which, when the user taps a TextView , I would like to apply a defined style.
8 Answers
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