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How does JavaScript .prototype work?

...ns like: Person.call(person, "George"); or //apply is more useful when params count is not fixed Person.apply(person, ["George"]); getName.call(person); getName.apply(person); these 3 methods are the important initial steps to figure out the .prototype functionality. 2- How does the new...
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C# HttpClient 4.5 multipart/form-data upload

...get an error: "Uploaded file(s) not found" try to add the key and fileName parameters to content (bilddatei and upload.jpg in this example). – jhhwilliams May 24 '19 at 8:13 ...
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Running a cron every 30 seconds

...ndaries, keep commands in sync. * * * * * /path/to/executable param1 param2 * * * * * ( sleep 30 ; /path/to/executable param1 param2 ) You'll see I've added comments and formatted to ensure it's easy to keep them synchronised. Both cron jobs actually run every minute but the latter one...
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Why does casting int to invalid enum value NOT throw exception?

...y to provide a value that is not an enum. /// </summary> /// <typeparam name="T">An enum type. </typeparam> public static class EnumUtil<T> where T : struct, IConvertible // Try to get as much of a static check as we can. { // The .NET framework doesn't provide a comp...
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PHP cURL custom headers

... Here is one basic function: /** * * @param string $url * @param string|array $post_fields * @param array $headers * @return type */ function cUrlGetData($url, $post_fields = null, $headers = null) { $ch = curl_init(); $timeout = 5; curl_setopt($c...
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AJAX in Chrome sending OPTIONS instead of GET/POST/PUT/DELETE?

... If it is possible pass the params through regular GET/POST with a different name and let your server side code handles it. I had a similar issue with my own proxy to bypass CORS and I got the same error of POST->OPTION in Chrome. It was the Author...
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Calculate the center point of multiple latitude/longitude coordinate pairs

... * Get a center latitude,longitude from an array of like geopoints * * @param array data 2 dimensional array of latitudes and longitudes * For Example: * $data = array * ( * 0 = > array(45.849382, 76.322333), * 1 = > array(45.843543, 75.324143), * 2 = > array(45.765744, 76.54...
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Facebook access token server-side validation for iPhone app

...is, I just tried with app id and secret and gave me error for "input_token parameter required" – Johnny Z Apr 1 '14 at 12:04 ...
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Should switch statements always contain a default clause?

... At the same time if you are checking a GET parameter, you might not want an exception thrown every time a user changes the get url to something that is not valid :[ – Andrew Aug 13 '15 at 18:33 ...
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Simple argparse example wanted: 1 argument, 3 results

... Matt is asking about positional parameters in argparse, and I agree that the Python documentation is lacking on this aspect. There's not a single, complete example in the ~20 odd pages that shows both parsing and using positional parameters. None of the o...