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How do I create an abstract base class in JavaScript?
...ract
*/
Animal.prototype.say = function() {
throw new Error("Abstract method!");
}
The Animal "class" and the say method are abstract.
Creating an instance would throw an error:
new Animal(); // throws
This is how you "inherit" from it:
var Cat = function() {
Animal.apply(this, argu...
Changing git commit message after push (given that no one pulled from remote)
...e made a git commit and subsequent push. I would like to change the commit message. If I understand correctly, this is not advisable because someone might have pulled from the remote repository before I make such changes. What if I know that no one has pulled?
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Unique Constraint in Entity Framework Code First
...
As far as I can tell, there's no way to do this with Entity Framework at the moment. However, this isn't just a problem with unique constraints... you may want to create indexes, check constraints, and possibly triggers and other constructs too. Here's a simple pattern you can use with...
Java Round up Any Number
...l. I'm guessing a is an int, which would make a / 100 perform integer arithmetic. Try Math.ceil(a / 100.0) instead.
int a = 142;
System.out.println(a / 100);
System.out.println(Math.ceil(a / 100));
System.out.println(a / 100.0);
System.out.println(Math.ceil(a / 100.0));
System.out.println((int) Mat...
How to view revision history for Mercurial file?
For a given file in a Mercurial repository, how can you see the revision history?
4 Answers
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Multiple models in a view
...model ViewModel.LoginViewModel
@using (Html.BeginForm("Login", "Auth", FormMethod.Post))
{
@Html.TextBoxFor(model => model.Email)
@Html.PasswordFor(model => model.Password)
}
and register.cshtml same thing
after creation you have to render them in the main view and pass them the vie...
How do I get the SharedPreferences from a PreferenceActivity in Android?
I am using a PreferenceActivity to show some settings for my application. I am inflating the settings via a xml file so that my onCreate (and complete class methods) looks like this:
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Find files containing a given text
In bash I want to return file name (and the path to the file) for every file of type .php|.html|.js containing the case-insensitive string "document.cookie" | "setcookie"
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why is plotting with Matplotlib so slow?
...ormance. The following example is modified from SciPy examples and gives me only ~ 8 frames per second!
5 Answers
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Convert number strings with commas in pandas DataFrame to float
I have a DataFrame that contains numbers as strings with commas for the thousands marker. I need to convert them to floats.
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