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How can I get the behavior of GNU's readlink -f on a Mac?
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If you are calling readlink from places other than bash, another solution would be remove /usr/bin/readlink then create a link to /usr/local/bin/greadlink.
– chinglun
Nov 12 '14 at 19:07
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JavaScript for…in vs for
...ed. Worse: You might get unexpected results; it includes members inherited from the prototype chain and the name of methods.
Everything but the properties can be filtered out with .hasOwnProperty. This code sample does what you probably wanted originally:
for (var name in obj) {
if (Object.pro...
What is the zero for string?
...To pass a zero string in stringID, use
k := NewKey(c, "kind", "", 0, p)
From the specification :
When memory is allocated to store a value, either through a
declaration or a call of make or new, and no explicit initialization
is provided, the memory is given a default initialization. Each...
What is the difference between a symbolic link and a hard link?
...reate one, but do not understand the use of a hard link and how it differs from a symbolic one.
21 Answers
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How to set std::tuple element by index?
One can get an element from std::tuple by index using std::get .
Analogically, how to set tuple's element by index?
2 ...
Convert command line arguments into an array in Bash
...perate directly on $@ ;)
Here is how to do pass a a list of args directly from the prompt:
function echoarg { for stuff in "$@" ; do echo $stuff ; done ; }
echoarg Hey Ho Lets Go
Hey
Ho
Lets
Go
sha...
PersistentObjectException: detached entity passed to persist thrown by JPA and Hibernate
... practice to declare "Property" access type is to move ALL the annotations from the member properties to the corresponding getters. A big word of caution is not to mix "Field" and "Property" access types within the entity class otherwise the behavior is undefined by the JSR-317 specifications.
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Are GUID collisions possible?
...nt one was inserted 3 weeks ago. Not believing this, I restored a database from 2 weeks backup, and the guid was there. Checked the code, the new guid was freshly generated no doubt about it. Pow guid collision, happened only once, but I really wish I would have won at lotto instead,the chance is gr...
What is the difference between DAO and Repository patterns?
...g. imagine you'll need a DAO that stores your data in XML files or gets it from a message queue rather than from Database ...).
– Stef
Mar 20 '13 at 0:15
22
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Shell - How to find directory of some command?
... find files. It uses a database that's maintained by updatedb which is run from a cron job. Since locate searches a database rather than the whole filesystem it's much faster than find (which could be used as a last resort).
– Paused until further notice.
May 2...