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Fastest way to find second (third…) highest/lowest value in vector or column
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I used this method, but get the following error: Error in sort.int(x, na.last = na.last, decreasing = decreasing, ...) : index 4705 outside bounds Any idea what might the issue be? Some details: My x is a numeric vector of length 4706 with some NAs in the data. I...
Create an empty object in JavaScript with {} or new Object()?
...t be a good practice to get into.
One other thing: you might have subtle errors if you forget to use the new operator. So, using literals will help you avoid that problem.
Ultimately, it will depend on the situation as well as preference.
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Does MySQL index foreign key columns automatically?
... as being a "redundant index". I tried to drop it but I got the following error: "ERROR 1553 (HY000): Cannot drop index 'index_name': needed in a foreign key constraint". So, it's not possible to drop that index and keep the foreign key.
– Ciprian Stoica
Oct ...
What represents a double in sql server?
... With some quick and dodgy mental arithmetic... the rounding/approximation errors would be the about the length of this fill stop -> "."
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How exactly does the “Specific Version” property of an assembly reference work in Visual Studio?
...ly mentioned warning). If the code has references, the build fails with an error that looks as if the code were using unknown types or namespaces. The only indication why the build really failed is the warning MSB3245.
Order in which assemblies are resolved
The order in which the assembly resolut...
iFrame src change event detection?
...);
https://jquery.com/upgrade-guide/3.0/#breaking-change-load-unload-and-error-removed
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Arrow operator (->) usage in C
...ointer has no members! And compiler knows this and will therefore issue an error e.g.:
error: ‘ptr’ is a pointer; did you mean to use ‘->’?
printf("%d\n", *ptr.km);
Instead you use this (*ptr).kg and you force compiler to 1st dereference the pointer and enable acess to the chunk of d...
When would you use the different git merge strategies?
...the default 'recursive' for a two-head merge that had fatal git-write-tree errors. 'Resolve' strategy merged cleanly. It may have had to do with moving a lot of files around in the branch being merged.
– thaddeusmt
May 17 '12 at 12:51
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How to replace strings containing slashes with sed?
... contains the actual delimiter used by sed - then sed terminates on syntax error. Consider the following example:
This works:
$ VALUE=12345
$ echo "MyVar=%DEF_VALUE%" | sed -e s/%DEF_VALUE%/${VALUE}/g
MyVar=12345
This breaks:
$ VALUE=12345/6
$ echo "MyVar=%DEF_VALUE%" | sed -e s/%DEF_VALUE%/${V...
Finish an activity from another activity
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It shows this error "Syntax error on tokens, AnnotationName expected instead" on "registerReceiver(broadcast_reciever, new IntentFilter("finish_activity"));". What's wrong?
– Behzad
Nov 13 '12 at 8:2...