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Core Data: Quickest way to delete all instances of an entity
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iOS 9 and later:
iOS 9 added a new class called NSBatchDeleteRequest that allows you to easily delete objects matching a predicate without having to load them all in to memory. Here's how you'd use it:
Swift 5
let fetchRequest: NSFetchRequest<...
django change default runserver port
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Pablo AlbornozPablo Albornoz
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How to remove selected commit log entries from a Git repository while keeping their changes?
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git-rebase(1) does exactly that.
$ git rebase -i HEAD~5
git awsome-ness [git rebase --interactive] contains an example.
Don't use git-rebase on public (remote) commits.
Make sure your working directory is clean (commit or stash your current changes).
Run the above command...
How do you fade in/out a background color using jquery?
How do I fade in text content with jQuery?
9 Answers
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How can I create download link in HTML?
I have a basic idea of HTML. I want to create the download link in my sample website, but I don't have idea of how to create it. How do I make a link to download a file rather than visit it?
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How do you write multiline strings in Go?
... use a raw string literal, where the string is delimited by backticks instead of double quotes.
`line 1
line 2
line 3`
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How to assert two list contain the same elements in Python? [duplicate]
...tCountEqual(doc) which does exactly what you are looking for, as you can read from the python standard library documentation. The method is somewhat misleadingly named but it does exactly what you are looking for.
a and b have the same elements in the same number, regardless of their order
Her...
Import multiple csv files into pandas and concatenate into one DataFrame
I would like to read several csv files from a directory into pandas and concatenate them into one big DataFrame. I have not been able to figure it out though. Here is what I have so far:
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Is it possible to data-bind visible to the negation (“!”) of a boolean ViewModel property?
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RP NiemeyerRP Niemeyer
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“NODE_ENV” is not recognized as an internal or external command, operable command or batch file
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Jim O'NeilJim O'Neil
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