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What does the Reflect object do in JavaScript?

... http://people.mozilla.org/~jorendorff/es6-draft.html#sec-reflect-object and it sounds similar to the Proxy object apart from the realm and loader functionality. ...
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How to tell when UITableView has completed ReloadData?

...nvestigation, I find that the table view sends tableView:numberOfSections: and tableView:numberOfRowsInSection: to its data source before returning from reloadData. If the delegate implements tableView:heightForRowAtIndexPath:, the table view also sends that (for each row) before returning from rel...
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SET NOCOUNT ON usage

.... There are some cases though, where calculating the number of rows beforehand would impact the performance, such as a forward-only cursor. In that case NOCOUNT might be a necessity. Other than that, there is absolutely no need to follow "use NOCOUNT wherever possible" motto. Here is a very detaile...
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Best way to store JSON in an HTML attribute?

...o run into them, then store the data in a <script>. Define an object and map element ids to property names in that object. What if the JSON contains special characters? (e.g. {test: '<"myString/>'}) Just follow the normal rules for including untrusted data in attribute values. Use ...
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Free space in a CMD shell

... And it also works with mountpoints, which isn't case with dir! – LogicDaemon Oct 6 '14 at 14:56 2 ...
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Is there a Python equivalent of the C# null-coalescing operator?

...ator does not return only True or False. Instead, it returns the first operand if the first operand evaluates to true, and it returns the second operand if the first operand evaluates to false. In this case, the expression x or y returns x if it is True or evaluates to true when converted to boolea...
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What does @media screen and (max-width: 1024px) mean in CSS?

... as opposed to e.g. an older mobile phone browser (note that the iPhone, and other smartphone browsers, do identify themselves as being in the screen category), or a screenreader — and that it’s displaying the page on-screen, rather than printing it. max-width: 1024px — the width of the browse...
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What is the difference between Reader and InputStream?

What is the difference between Reader and InputStream? And when to use what? If I can use Reader for reading characters why I will use inputstream, I guess to read objects? ...
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When to favor ng-if vs. ng-show/ng-hide?

I understand that ng-show and ng-hide affect the class set on an element and that ng-if controls whether an element is rendered as part of the DOM. ...
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scp with port number specified

...lt The lowercase p switch is used with scp for the preservation of times and modes. Here is an excerpt from scp's man page with all of the details concerning the two switches, as well as an explanation of why uppercase P was chosen for scp: -P port   Specifies the port to connect to on the r...