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How can I check for NaN values?

float('nan') results in Nan (not a number). But how do I check for it? Should be very easy, but I cannot find it. 17 Answe...
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How to remove non-alphanumeric characters?

... need to remove all characters from a string which aren't in a-z A-Z 0-9 set or are not spaces. 9 Answers ...
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What is meant by Ems? (Android TextView)

... android:ems or setEms(n) sets the width of a TextView to fit a text of n 'M' letters regardless of the actual text extension and text size. See wikipedia Em unit but only when the layout_width is set to "wrap_content". Other layout_width v...
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Populate a Razor Section From a Partial

...oString()); } public class ResourceInclude { public string Path { get; set; } public int Priority { get; set; } } Once you have that in place your partial view just needs to call @Html.RequireScript("/Path/To/Script"). And in the layout view's head section you call @Html.EmitRequiredScrip...
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How do I grep for all non-ASCII characters?

...ill highlight non-ascii chars in red. In some systems, depending on your settings, the above will not work, so you can grep by the inverse grep --color='auto' -P -n "[^\x00-\x7F]" file.xml Note also, that the important bit is the -P flag which equates to --perl-regexp: so it will interpret your...
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Extract only right most n letters from a string

.../Check if the value is valid if (string.IsNullOrEmpty(sValue)) { //Set valid empty string as string could be null sValue = string.Empty; } else if (sValue.Length > iMaxLength) { //Make the string no longer than the max length sValue = sValue.Substring(sValue.Length - iMa...
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How can I print the contents of a hash in Perl?

... - 4 - 5 - 6 Other times I will use Data::Dump. You don't need to set as many variables to get it to output it in a nice format than you do for Data::Dumper. use Data::Dump = 'dump'; print dump(\%variable), "\n"; { abc => 123, def => [4, 5, 6] } More recently I have been usi...
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Python Requests throwing SSLError

...tificate. Like @dirk mentioned in a previous comment, the quickest fix is setting verify=False: requests.get('https://example.com', verify=False) Please note that this will cause the certificate not to be verified. This will expose your application to security risks, such as man-in-the-middle at...
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$(document).ready equivalent without jQuery

...ntElement.doScroll("left"); } catch( error ) { setTimeout( arguments.callee, 0 ); return; } // and execute any waiting functions jQuery.ready(); })(); } // A fallback to window.onload, that will always ...
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Save Screen (program) output to a file

...e file : By default logfile name is "screenlog.0". You can set new logfile name with the "-Logfile" option. You can check the existing version of Screen using screen -version. You can download and install the latest Screen version from https://www.gnu.org/software/screen/. ...