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Please explain some of Paul Graham's points on Lisp
...)
;; this is the interesting bit:
(println (str/replace-re #"\d+" "FOO" "a123b4c56"))
This snippet of Clojure code prints out aFOObFOOcFOO. Note that Clojure arguably does not fully satisfy the fourth point on your list, since read-time is not really open to user code; I will discuss what it would...
Several ports (8005, 8080, 8009) required by Tomcat Server at localhost are already in use
...st gives me the help for the kill command.
– CoderGuy123
Jun 1 '15 at 2:18
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Does ARC support dispatch queues?
...
And now for the long answer…
If your deployment target is lower than iOS 6.0 or Mac OS X 10.8
You need to use dispatch_retain and dispatch_release on your queue. ARC does not manage them.
If your deployment target is iOS 6.0 or Mac OS X 10.8 or later
ARC will manage your queue for you. Yo...
How to remove the hash from window.location (URL) with JavaScript without page refresh?
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This will remove the trailing hash as well.
eg: http://test.com/123#abc -> http://test.com/123
if(window.history.pushState) {
window.history.pushState('', '/', window.location.pathname)
} else {
window.location.hash = '';
}
...
Good examples of Not a Functor/Functor/Applicative/Monad?
...fied. For example, fmap id ≠ id, because let (Q(f,_)) = fmap id (Q(read,"123")) in f "456" is 123, but let (Q(f,_)) = id (Q(read,"123")) in f "456" is 456.
In fact, F is only a profunctor, - it is neither a functor nor a contrafunctor.
A lawful functor that is not applicative because the type s...
How can I get the concatenation of two lists in Python without modifying either one? [duplicate]
...;>> sum([(1,2), (1,), ()], ())
(1, 2, 1)
>>> sum([Counter('123'), Counter('234'), Counter('345')], Counter())
Counter({'1':1, '2':2, '3':3, '4':2, '5':1})
>>> sum([True, True, False], False)
2
With the notable exception of strings:
>>> sum(['123', '345', '567'],...
How to run a program without an operating system?
...ill only load a small block of code.
Many ARM boards let you do some of those things. Some have boot loaders to help you with basic setup.
Here you may find a great tutorial on how to do a basic operating system on a Raspberry Pi.
Edit:
This article, and the whole wiki.osdev.org will anwer most o...
Using cURL with a username and password?
...syntax
curl http://username:password@api.somesite.com/test/blah?something=123
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Iterating through directories with Python
...with a simple print statement you can see that each file is found:
import os
rootdir = 'C:/Users/sid/Desktop/test'
for subdir, dirs, files in os.walk(rootdir):
for file in files:
print os.path.join(subdir, file)
If you still get errors when running the above, please provide the error...
Check if element exists in jQuery [duplicate]
...swered Feb 13 '14 at 4:38
Gaurav123Gaurav123
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