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GetType() can lie?

... and polymorphism and reading Eric Lippert's answer, I started thinking if making GetType() not be virtual really ensured that an object could not lie about its Type . ...
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How to extend an existing JavaScript array with another array, without creating a new array

...ts of the second array as arguments to .push: >>> a.push(...b) If your browser does not support ECMAScript 6, you can use .apply instead: >>> a.push.apply(a, b) Or perhaps, if you think it's clearer: >>> Array.prototype.push.apply(a,b) Please note that all these s...
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Capture iframe load complete event

Is there a way to capture when the contents of an iframe have fully loaded from the parent page? 6 Answers ...
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How to apply !important using .css()?

...that @Nick Craver's method is easier/wiser. The above, attr() approach modified slightly to preserve the original style string/properties, and modified as suggested by falko in a comment: $('#elem').attr('style', function(i,s) { return (s || '') + 'width: 100px !important;' }); ...
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Core Data: Quickest way to delete all instances of an entity

... without having to load them all in to memory. Here's how you'd use it: Swift 5 let fetchRequest: NSFetchRequest<NSFetchRequestResult> = NSFetchRequest(entityName: "Car") let deleteRequest = NSBatchDeleteRequest(fetchRequest: fetchRequest) do { try myPersistentStoreCoordinator.execute(d...
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Updating a local repository with changes from a GitHub repository

...complained: "You asked to pull from the remote 'origin', but did not specify a branch. Because this is not the default configured remote for your current branch, you must specify a branch on the command line." So I tried "$ git pull origin master" and it worked fine. – Jua...
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setting y-axis limit in matplotlib

... To add to @Hima's answer, if you want to modify a current x or y limit you could use the following. import numpy as np # you probably alredy do this so no extra overhead fig, axes = plt.subplot() axes.plot(data[:,0], data[:,1]) xlim = axes.get_xlim()...
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Echo a blank (empty) line to the console from a Windows batch file [duplicate]

...n find my original (simplistic and misguided) answer in the edit history. If Microsoft had the intent of providing a means of outputting a blank line from cmd.exe, Microsoft surely would have documented such a simple operation. It is this omission that motivated me to ask this question. So, becaus...
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How to make HTML table cell editable?

...>I'm not editable</td></tr> </table> Just note that if you make the table editable, in Mozilla at least, you can delete rows, etc. You'd also need to check whether your target audience's browsers supported this attribute. As far as listening for the changes (so you can send ...
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What happens to git commits created in a detached HEAD state?

...mmit should be in there. You can make it into a new branch. For example, if the SHA-1 is ba5a739, then you can make a new branch named "new-branch" at the old commit with: git branch new-branch ba5a739 Note that "lost" commits will get deleted when the database is pruned. ...