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How to Turn Off Showing Whitespace Characters in Visual Studio IDE
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hehe I toggled it on again by mistake XDDD Thank you!!! Anybody knows why this feature even exists? Isn't it infinitely annoying?
– Vintharas
Dec 13 '11 at 10:48
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Run a callback only if an attribute has changed in Rails
... to ActiveRecord::Dirty in Rails 5.1+:
ActiveRecord::Dirty
https://api.rubyonrails.org/classes/ActiveRecord/AttributeMethods/Dirty.html
Before Saving (OPTIONAL CHANGE)
After modifying an object and before saving to the database, or within the before_save filter:
changes should now be changes_t...
JavaScript: remove event listener
...s use of arguments.callee() in strict mode. Avoid using arguments.callee() by either giving function expressions a name or use a function declaration where a function must call itself." (though it's using callee() instead of callee, it's still removed, boo!)
– Dai
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Simplest/Cleanest way to implement singleton in JavaScript?
...tern, it basically allows you to encapsulate private members on an object, by taking advantage of the use of closures.
UPDATE: I would like to add that if you want to prevent the modification of the singleton object, you can freeze it, using the ES5 Object.freeze method.
That will make the object ...
Adding Only Untracked Files
...was something less, well, interactive, but it's certainly better than file by file. :-)
– Rob Wilkerson
Sep 16 '11 at 15:11
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How can I convert a file pointer ( FILE* fp ) to a file descriptor (int fd)?
I have a FILE * , returned by a call to fopen() . I need to get a file descriptor from it, to make calls like fsync(fd) on it. What's the function to get a file descriptor from a file pointer?
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How to make Sequelize use singular table names
...ated_at
underscored: true,
// disable the modification of tablenames; By default, sequelize will automatically
// transform all passed model names (first parameter of define) into plural.
// if you don't want that, set the following
freezeTableName: true,
// define the table's name
t...
How to reliably open a file in the same directory as a Python script
...les that were in the same directory as the currently running Python script by simply using a command like
5 Answers
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Check if value already exists within list of dictionaries?
...d also be missing the above code can give you a KeyError. You can fix this by using get and providing a default value. If you don't provide a default value, None is returned.
if not any(d.get('main_color', default_value) == 'red' for d in a):
# does not exist
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Git: updating remote branch information
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That will remove all branches that are no longer tracked by the remote repository. So, just be careful.
– Garrett Hyde
Oct 22 '10 at 2:51
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