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How to Truncate a string in PHP to the word closest to a certain number of characters?
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I edited the answer to include @BlairMcMillan advice
– Kim Stacks
Mar 26 '14 at 6:46
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How do you make a web application in Clojure? [closed]
...e incoming request and/or the outgoing response. Some built in middle-ware include sessions and stacktrace. The session middle-ware will add a :session key to the request map that contains all of the session info for the user making the request. If the :session key is present in the response map, it...
Do spurious wakeups in Java actually happen?
... note that this explanation applies across multiple programming languages, including Java.
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Calling a parent window function from an iframe
...on the parent window are all embedded in the footer, i read somewhere that including javascript files in the footer causes the problem parent.custom_function() is not working.
– Friso Horstman
May 18 '16 at 16:55
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In the shell, what does “ 2>&1 ” mean?
...number of file descriptors if the program uses them.
You can look at /usr/include/unistd.h if you forget them:
/* Standard file descriptors. */
#define STDIN_FILENO 0 /* Standard input. */
#define STDOUT_FILENO 1 /* Standard output. */
#define STDERR_FILENO 2 /* Standard error outp...
What is the significance of load factor in HashMap?
...the lookup cost (reflected in most of the operations of the HashMap class, including get and put). The expected number of entries in the map and its load factor should be taken into account when setting its initial capacity, so as to minimize the number of rehash operations. If the initial capacity ...
Create instance of generic type in Java?
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Dunno if this helps, but when you subclass (including anonymously) a generic type, the type information is available via reflection. e.g.,
public abstract class Foo<E> {
public E instance;
public Foo() throws Exception {
instance = ((Class)((Paramete...
How do I redirect output to a variable in shell? [duplicate]
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@IntrepidDude I edited the answer to include what you (and others) need to know. Thanks for asking. This will benefit everyone.
– Bruno Bronosky
Sep 22 '17 at 14:48
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Convert JavaScript string in dot notation into an object reference
...our data. Some bad ways to do this that might work for some use cases also include:
// hackish/wrongish; preprocess your string into "a.b.4.c.d.1.2.3", e.g.:
> yourstring.replace(/]/g,"").replace(/\[/g,".").split(".")
"a.b.4.c.d.1.2.3" //use code from before
Special 2018 edit:
Let's go fu...
Algorithm to find Largest prime factor of a number
...s (note that not all possible k need be prime, e.g. for 210n+k you have to include 121, otherwise you'd miss 331)
– Tobias Kienzler
Oct 7 '13 at 11:51
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