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Why does ++[[]][+[]]+[+[]] return the string “10”?

... edited Aug 5 '19 at 9:56 user4642212 12.9k66 gold badges4040 silver badges5959 bronze badges answered Aug 26 '11 at 8:56 ...
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Python: changing value in a tuple

...oop In [5]: %timeit replace_at_index2(d, 5, 99) 1000000 loops, best of 3: 642 ns per loop Yet if we look at longer tuples, list conversion is the way to go: In [6]: k = tuple(range(1000)) In [7]: %timeit replace_at_index1(k, 500, 99) 100000 loops, best of 3: 9.08 µs per loop In [8]: %timeit r...
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PSQLException: current transaction is aborted, commands ignored until end of transaction block

...L by default stops you from doing this. I'm using: PostgreSQL 9.1.6 on x86_64-redhat-linux-gnu, compiled by gcc (GCC) 4.7.2 20120921 (Red Hat 4.7.2-2), 64-bit". My PostgreSQL driver is: postgresql-9.2-1000.jdbc4.jar Using Java version: Java 1.7 Here is the table create statement to illustrate the E...
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avoid page break inside row of table

... Unfortunately this doesn't (yet) work with webkit based browsers. – Attila Fulop Mar 12 '13 at 19:17 2 ...
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Django: Why do some model fields clash with each other?

... The OP isn't using a abstract base class... but if you are, you will find that hard coding the related_name in the FK (e.g. ..., related_name="myname") will result in a number of these conflict errors - one for each inherited class from the base class. Th...
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Eclipse - Unable to install breakpoint due to missing line number attributes

... is still valid for my installation of Eclipse Kepler running on windows 8 64 bit with Java 7. – Magnilex Aug 20 '14 at 7:50 3 ...
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How can I make the computer beep in C#?

... I just tested in Win 7 x64 RC, and although the internal speaker didn't beep, there was a beep through speakers when I had them plugged in and on. I guess it's just the internal (mobo) speaker that won't beep. Thanks for the info @Lck. ...
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How can I access Google Sheet spreadsheets only with Javascript?

... Here's the Node.js Quickstart example for Sheets. You may find the Python-based videos above to be even more useful as they too access the API from the server-side. When using the REST API, you need to manage & store your source code as well as perform authorization by rolling your own auth c...
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R memory management / cannot allocate vector of size n Mb

...eate the object you need in one session. If the above cannot help, get a 64-bit machine with as much RAM as you can afford, and install 64-bit R. If you cannot do that there are many online services for remote computing. If you cannot do that the memory-mapping tools like package ff (or bigmem...
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Can scripts be inserted with innerHTML?

... You could Base64 encode your trigger-image as <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7"> (this will not do a network request) Actually... you do NOT need an image, reference a non-e...