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How to use pull to refresh in Swift?

... { super.viewDidLoad() refreshControl.attributedTitle = NSAttributedString(string: "Pull to refresh") refreshControl.addTarget(self, action: #selector(self.refresh(_:)), for: .valueChanged) tableView.addSubview(refreshControl) // not required when using UITableViewController } @objc fu...
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How to send multiple data fields via Ajax? [closed]

... From the docs "The data option can contain either a query string of the form key1=value1&key2=value2, or an object of the form {key1: 'value1', key2: 'value2'}. If the latter form is used, the data is converted into a query string using jQuery.param() before it is sent." ...
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Normalize data in pandas

... If your dataframe has strings in some columns, see this answer – netskink Jul 22 '18 at 0:21  |  ...
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Pagination in a REST web application

...ource, it's a property of the request. That makes me chose option 1 query string only. It just feels right. I really like how the Twitter API is structured restfully. Not too simple, not too complicated, well documented. For better or worse it's my "go to" design when I am on the fence on doing...
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How can I find script's directory with Python? [duplicate]

...ehaviour as, that python command does not exist within a file but inside a string which you pass to the interpreter – Har Apr 14 '15 at 8:15 ...
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Extract traceback info from an exception object

... A way to get traceback as a string from an exception object in Python 3: import traceback # `e` is an exception object that you get from somewhere traceback_str = ''.join(traceback.format_tb(e.__traceback__)) traceback.format_tb(...) returns a list ...
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How do I search for an object by its ObjectId in the mongo console?

...d = '58c85d1b7932a14c7a0a320d'; let o_id = new ObjectId(id); // id as a string is passed db.collection.findOne({"_id":o_id}); share | improve this answer | follow ...
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How can I access and process nested objects, arrays or JSON?

...a key -> value structure. Keys in an array must be numeric, whereas any string can be used as key in objects. The key-value pairs are also called the "properties". Properties can be accessed either using dot notation const value = obj.someProperty; or bracket notation, if the property name wo...
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Checking for NULL pointer in C/C++ [closed]

...ad and more explicit. I see where they're coming from, I just disagree the extra stuff makes it any easier. (I hate the macro, so I'm biased.) Up to you. I disagree with your argument. If you're not getting warnings for assignments in a conditional, you need to turn your warning levels up. Simple a...
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What's the difference between and , and ?

... <strong> and <em> add extra semantic meaning to your document. It just so happens that they also give a bold and italic style to your text. You could of course override their styling with CSS. <b> and <i> on the other hand only apply...