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in javascript, how can i get the last character in a string [duplicate]
...rt of the core JavaScript language and may be removed in the future. If at all possible, use the substring() method instead. - From MDN
– Ajeet Shah
May 30 at 21:52
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How to change the port of Tomcat from 8080 to 80?
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1) Go to conf folder in tomcat installation directory
e.g. C:\Tomcat 6.0\conf\
2) Edit following tag in server.xml file
<Connector connectionTimeout="20000" port="8080" protocol="HTTP/1.1" redirectPort="8443"/>
3) Change the port=8080 value to por...
Spinlock versus Semaphore
...ck (or, the other way around, a lock is a special case of a semaphore). Usually, but not necessarily, spinlocks are only valid within one process whereas semaphores can be used to synchronize between different processes, too.
A lock works for mutual exclusion, that is one thread at a time can acqui...
Difference between an application server and a servlet container?
...ost of the JavaEE technologies on a servlet-container, but you have to install a standalone implementation of the particular technology.
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How can I preview a merge in git?
...won't have any merged code or merge conflicts in your branch.
This is basically a dry-run.
Strategy 2: When you definitely want to merge, but only if there aren't conflicts
git checkout mybranch
git merge some-other-branch
If git reports conflicts (and ONLY IF THERE ARE conflicts) you can then do:
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What does 'wb' mean in this code, using Python?
...nd binary
files; the end-of-line characters in
text files are automatically altered
slightly when data is read or written.
This behind-the-scenes modification to
file data is fine for ASCII text
files, but it’ll corrupt binary data
like that in JPEG or EXE files.
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Case insensitive access for generic dictionary
... If you think about it, "foo".GetHashCode() and "FOO".GetHashCode() are totally different so there's no reasonable way you could implement a case-insensitive get on a case-sensitive hash map.
You can, however, create a case-insensitive dictionary in the first place using:-
var comparer = StringCom...
Difference between os.getenv and os.environ.get
Is there any difference at all between both approaches?
5 Answers
5
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Unicode, UTF, ASCII, ANSI format differences
...es per "code unit". This is the native format of strings in .NET, and generally in Windows and Java. Values outside the Basic Multilingual Plane (BMP) are encoded as surrogate pairs. These used to be relatively rarely used, but now many consumer applications will need to be aware of non-BMP characte...
Most efficient way to convert an HTMLCollection to an Array
...rray, other than iterating through the contents of said collection and manually pushing each item into an array?
7 Answers
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