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How to simplify a null-safe compareTo() implementation?
...null object. It looks like a problem with the collections framework to be honest, trying to figure out how to corner this.
– Pedro Borges
Jun 12 '18 at 11:52
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Copy and paste content from one file to another file in vi
I am working with two files, and I need to copy a few lines from one file and paste into another file. I know how to copy (yy) and paste (p) in the same file. But that doesn't work for different files. How is this done?
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How to move Jenkins from one PC to another
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Got the solution to my problem mentioned in my previous comment: Goto Manage Jenkins > configure system. Here in section 'Jenkins Location', under 'Jenkins URL' field, change the URL to point it to new jenkins server.
– merlachandra
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Oracle SQL: Update a table with data from another table
...aulKarr's loop -- and if there is not a unique correlation, then more than one target row may be updated for each source row.
– Andrew Leach
Dec 17 '13 at 16:12
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What's the idiomatic syntax for prepending to a short python list?
... you insert at the front of a list, python has to move all the other items one space forwards, lists can't "make space at the front". collections.deque (double ended queue) has support for "making space at the front" and is much faster in this case.
– fejfo
Mar...
Creating a byte array from a stream
...he MemoryStream, call stream.CopyTo(ms) and then return ms.ToArray(). Job done.
I should perhaps explain why my answer is longer than the others. Stream.Read doesn't guarantee that it will read everything it's asked for. If you're reading from a network stream, for example, it may read one packet's...
Visual Studio 2010 isn't building before a run when there are code changes
...ild and Run. "On Run, when projects are out of date" = Always build. The one below that = Do not launch.
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How do I “commit” changes in a git submodule? [duplicate]
...n various submodules, you can (or will be soon able to) push everything in one go (ie one push from the parent repo), with:
git push --recurse-submodules=on-demand
git1.7.11 ([ANNOUNCE] Git 1.7.11.rc1) mentions:
"git push --recurse-submodules" learned to optionally look into the histories of ...
JavaScript ternary operator example with functions
...e pretty exciting uses of ternary syntax in your question; I like the last one the best...
x = (1 < 2) ? true : false;
The use of ternary here is totally uncessesary - you could simply write
x = (1 < 2);
Likewise, the condition element of a ternary statement is always evaluated as a Bool...
Please explain some of Paul Graham's points on Lisp
... at (println and ends at the ) far to the right. This is lexed / parsed as one would expect, but already an important point arises: the result is not some special compiler-specific AST representation -- it's just a regular Clojure / Lisp data structure, namely a nested list containing a bunch of sym...