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Understanding Magento Block and Block Type
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126
The A is a module's alias. In this case page is short for Mage_Page_Block (it is defined in ap...
What does git rev-parse do?
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TuxdudeTuxdude
37.8k1212 gold badges9090 silver badges9797 bronze badges
add a co...
Apache Spark: The number of cores vs. the number of executors
....nodemanager.resource.cpu-vcores, should probably be set to 63 *
1024 = 64512 (megabytes) and 15 respectively. We avoid allocating 100%
of the resources to YARN containers because the node needs some
resources to run the OS and Hadoop daemons. In this case, we leave a
gigabyte and a core for these s...
Delete specific line number(s) from a text file using sed?
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If you want to delete lines 5 through 10 and 12:
sed -e '5,10d;12d' file
This will print the results to the screen. If you want to save the results to the same file:
sed -i.bak -e '5,10d;12d' file
This will back the file up to file.bak, and delete the given lines....
Is there any good dynamic SQL builder library in Java? [closed]
...ind Querydsl
– Timo Westkämper
Apr 12 '11 at 5:55
We use Querydsl SQL in a few of our in house projects. I have no pe...
Why does SIGPIPE exist?
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112
I don't buy the previously-accepted answer. SIGPIPE is generated exactly when the write fails w...
Git - Undo pushed commits
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edited Feb 19 '18 at 12:51
answered Mar 27 '14 at 9:27
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“git rm --cached x” vs “git reset head -- x”?
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12
I find the use of working copy, tree, and working tree a little confusing. Is the working tree the working copy, or tree ?
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git switch branch without discarding local changes
... to carry on?
– stt106
Nov 8 '17 at 12:24
@stt106: you must still commit, but you can do it, as in this and the other ...
Why doesn't C# support the return of references?
...rn ref x;
else
return ref y;
}
and then call it with
int a = 123;
int b = 456;
ref int c = ref Max(ref a, ref b);
c += 100;
Console.WriteLine(b); // 556!
I know empirically that it is possible to build a version of C# that supports these features because I have done so. Advanced pr...