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Objective-C declared @property attributes (nonatomic, copy, strong, weak)
...e threadsafe accessors so atomic variables are threadsafe (can be accessed from multiple threads without botching of data)
Copy
copy is required when the object is mutable. Use this if you need the value of the object as it is at this moment, and you don't want that value to reflect any changes made...
Why doesn't git recognize that my file has been changed, therefore git add not working
...git reset path/to/file
The git rm --cached means to only remove the file from the index, and reset tells git to reload the git index from the last commit.
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How to leave a message for a github.com user
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The email address in this api is coming from the user's local git setup, not what they've set in Github. Github just recently added an option, under Settings/Emails, to block commits that accidentally include an email address the user has marked as 'private'. And, ...
What does the “assert” keyword do? [duplicate]
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should we remove code containing assert from production code ?
– Qbik
Jul 4 '16 at 15:48
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Django “login() takes exactly 1 argument (2 given)” error
...quest, user)
To avoid it rename your view function or refer to the login from django.contrib.auth in some different way. You could for example change the import to rename the login function:
from django.contrib.auth import login as auth_login
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auth_login(request, user)
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Difference between app.use and app.get in express.js
..., but nobody does a great job of explaining how they function differently. From what I can gather, all .use handlers run first, and .use matches any path that begins with the specified path (i.e. .use('/', ...) and .get('/*', ...) would match the same paths). For me it's easier to understand the ove...
Should Gemfile.lock be included in .gitignore?
... of new to bundler and the files it generates. I have a copy of a git repo from GitHub that is being contributed to by many people so I was surprised to find that bundler created a file that didn't exist in the repo and wasn't in the .gitignore list.
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POST JSON fails with 415 Unsupported media type, Spring 3 mvc
...eader is used by @RequestBody to determine what format the data being sent from the client in the request is. The accept header is used by @ResponseBody to determine what format to sent the data back to the client in the response. That's why you need both headers.
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What does the star operator mean, in a function call?
...are not operators. Operators are used in expressions to create new values from existing values (1+2 becomes 3, for example. The * and ** here are part of the syntax of function declarations and calls.
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ArrayList vs List in C#
...class. It supports storing values of a specific type without casting to or from object (which would have incurred boxing/unboxing overhead when T is a value type in the ArrayList case). ArrayList simply stores object references. As a generic collection, List<T> implements the generic IEnumerab...