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EF Migrations: Rollback last applied migration?
This looks like a really common task, but I can't find an easy way to do it.
14 Answers
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Why is conversion from string constant to 'char*' valid in C but invalid in C++
...p through C++03, your first example was valid, but used a deprecated implicit conversion--a string literal should be treated as being of type char const *, since you can't modify its contents (without causing undefined behavior).
As of C++11, the implicit conversion that had been deprecated was off...
In Firebase, is there a way to get the number of children of a node without loading all the node dat
...e snippet you gave does indeed load the entire set of data and then counts it client-side, which can be very slow for large amounts of data.
Firebase doesn't currently have a way to count children without loading data, but we do plan to add it.
For now, one solution would be to maintain a counter ...
One SVN repository or many?
If you have multiple, unrelated projects, is it a good idea to put them in the same repository?
13 Answers
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Break when a value changes using the Visual Studio debugger
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edited Apr 8 '16 at 14:57
Peter Mortensen
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.NET Format a string with fixed spaces
...es the .NET String.Format method allow placement of a string at a fixed position within a fixed length string.
10 Answers
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How do I update pip itself from inside my virtual environment?
I'm able to update pip-managed packages, but how do I update pip itself? According to pip --version , I currently have pip 1.1 installed in my virtualenv and I want to update to the latest version.
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Datatables: Cannot read property 'mData' of undefined
I have an issue with Datatables . I also went through this link which didn't yield any results. I have included all the prerequisites where I'm parsing data directly into the DOM. Kindly help me to fix this issue.
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Rails: Missing host to link to! Please provide :host parameter or set default_url_options[:host]
...n answer to this. Where do I set default_url_options ? I've already set it for config.action_mailer.default_url_options to solve this same bug elsewhere, but now I'm getting this error when trying to use a URL helper inside an RSpec spec. I have no idea where it's expecting default_url_options...
Get cookie by name
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One approach, which avoids iterating over an array, would be:
function getCookie(name) {
const value = `; ${document.cookie}`;
const parts = value.split(`; ${name}=`);
if (parts.length === 2) return parts.pop().split(';').shift();
}
Walkthrou...