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Java ArrayList copy

... l1 of size 10. I assign l1 to new list reference type l2 . Will l1 and l2 point to same ArrayList object? Or is a copy of the ArrayList object assigned to l2 ? ...
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Simple (I think) Horizontal Line in WPF?

Creating a relatively simple data entry form, and just want to separate certain sections with a horizontal line (not unlike an HR tag in HTML) that stretches the full length of the form. ...
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Multiple modals overlay

... After seeing many fixes for this, and none of them were exactly what I needed I've came up with a even shorter solution that is inspired by @YermoLamers & @Ketwaroo. Backdrop z-index fix This solution uses a setTimeout because the .modal-backdrop isn't c...
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Can I use break to exit multiple nested 'for' loops?

... AFAIK, C++ doesn't support naming loops, like Java and other languages do. You can use a goto, or create a flag value that you use. At the end of each loop check the flag value. If it is set to true, then you can break out of that iteration. ...
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Check time difference in Javascript

...objects to get their difference: // use a constant date (e.g. 2000-01-01) and the desired time to initialize two dates var date1 = new Date(2000, 0, 1, 9, 0); // 9:00 AM var date2 = new Date(2000, 0, 1, 17, 0); // 5:00 PM // the following is to handle cases where the times are on the opposite si...
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What does the Ellipsis object do?

...nterpretation is purely up to whatever implements the __getitem__ function and sees Ellipsis objects there, but its main (and intended) use is in the numpy third-party library, which adds a multidimensional array type. Since there are more than one dimensions, slicing becomes more complex than just...
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How to set Sqlite3 to be case insensitive when string comparing?

...ocase in the column definition (the other options are binary (the default) and rtrim; see here). You can specify collate nocase when you create an index as well. For example: create table Test ( Text_Value text collate nocase ); insert into Test values ('A'); insert into Test values ('b'); i...
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Override intranet compatibility mode IE8

...hanging the meta header to IE8, but it doesn't acknowledge the meta header and just uses the browser setting. Does anyone know how to disable this? ...
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How to implement WiX installer upgrade?

...omatic upgrades. It prevents downgrades, giving a localised error message, and also prevents upgrading an already existing identical version (i.e. only lower versions are upgraded): <MajorUpgrade AllowDowngrades="no" DowngradeErrorMessage="!(loc.NewerVersionInstalled)" AllowSameVersionUp...
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Why is string concatenation faster than array join?

...owsers have also optimized string concatenation, so Safari, Opera, Chrome, and Internet Explorer 8 also show better performance using the plus operator. Internet Explorer prior to version 8 didn’t have such an optimization, and so the array technique is always faster than the plus operator. ...