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How to remove items from a list while iterating?

...modify the old list in place. That's different from what you'd be doing by selective removal, as in @Lennart's suggestion -- it's faster, but if your list is accessed via multiple references the fact that you're just reseating one of the references and NOT altering the list object itself can lead to...
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Group By Multiple Columns

... new {t.MaterialID, t.ProductID} into grp select new { grp.Key.MaterialID, grp.Key.ProductID, Quantity = grp.Sum(t => t.Quantity) }).ToList(); ...
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How to test an Android Library Project

...ngtonAndroidToolsTester") that will serve as an Android Library Tester and select the Android Test App project ("RemingtonAndroidToolsTestApp" in this example) as the target. Go the Library tab of Java Build Path for the Android Library Tester project ("RemingtonAndroidToolsTester" in this example)...
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Difference between author and committer in Git?

...oject maintainer, and who merged the patch See for example this randomly selected patch and the corresponding commit: https://lkml.org/lkml/2018/1/25/568 https://github.com/torvalds/linux/commit/5beda7d54eafece4c974cfa9fbb9f60fb18fd20a Git web interfaces like GitHub and GitLab may or may not g...
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Why don't structs support inheritance?

...hat short[] can't be converted to int[] (short of conversion code, like 'a.Select(x => (int) x).ToArray()'). If the runtime disallowed the cast from Base to Derived, it would be a "wart", as that IS allowed for reference types. So we have two different "warts" possible -- forbid struct inherita...
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Does “git fetch --tags” include “git fetch”?

...ly fetches tags on tracked branches. We have a script that allows users to select a working branch, so by default there are many branches that are not currently tracked by an individual. – davidA Jul 30 '09 at 22:46 ...
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Repeater, ListView, DataList, DataGrid, GridView … Which to choose?

...plate lnsertltemTemplate ItemSeparatorTemplate ItemTemplate LayoutTemplate SelectedltemTemplate DataList (note the Style pairs) AlternatingltemStyle AlternatingltemTemplate EditltemStyle EditltemTemplate FooterStyle FooterTemplate HeaderStyle HeaderTemplate ItemStyle ItemTemplate SelectedltemSty...
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How to work with complex numbers in C?

...=182 "7.3 Complex arithmetic <complex.h>". Such keyword was probably selected in C99 to not break existing c (C90) programs which implements complex by hand. If <complex.h> is included, complex will be defined as macro, expanded to _Complex. You may be also interested in Derek M. Jones's...
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JavaScript string encryption and decryption?

... the details? Or... Do you need to implement a specific protocol? If you selected the first option, get CipherSweet.js. The documentation is available online. EncryptedField is sufficient for most use cases, but the EncryptedRow and EncryptedMultiRows APIs may be easier if you have a lot of dist...
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PHP Redirect with POST data

... the output of a POST-activated script to redirect the user agent to a selected resource. The new URI is not a substitute reference for the originally requested resource. The 303 response MUST NOT be cached, but the response to the second (redirected) request might be cacheable. Th...