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How dangerous is it to access an array out of bounds?
... If you are running as root (or some other privileged user), though, watch out. Buffer and array overruns are a common malware exploit.
– John
Debugging in Clojure? [closed]
... (println "dbg:" '~x "=" x#) x#))
You can insert it wherever you want to watch what's going on and when:
;; Examples of dbg
(println (+ (* 2 3) (dbg (* 8 9))))
(println (dbg (println "yo")))
(defn factorial[n] (if (= n 0) 1 (* n (dbg (factorial (dec n))))))
(factorial 8)
(def integers (iterate i...
Difference between binary tree and binary search tree
... in the (1, 3, 4) subtree, the 3 is the root, the 1 < 3 and 4 > 3.
Watch out for the exact wording in the problems -- a "binary search tree" is different from a "binary tree".
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Percentage Height HTML 5/CSS
...es a solution to lot of people coming here wondering what can be done most watch the first answer and think its not possible and wander off thinking of whether any other method exists without reading this
– codefreaK
Sep 4 '15 at 19:04
...
urllib2.HTTPError: HTTP Error 403: Forbidden
...ib2,cookielib
site= "http://www.nseindia.com/live_market/dynaContent/live_watch/get_quote/getHistoricalData.jsp?symbol=JPASSOCIAT&fromDate=1-JAN-2012&toDate=1-AUG-2012&datePeriod=unselected&hiddDwnld=true"
hdr = {'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.11 (KHT...
What is the most efficient way to store a list in the Django models?
...ManyToManyField("self")
@property
def friendlist(self):
# Watch for large querysets: it loads everything in memory
return list(self.friends.all())
You can access a user's friend list this way:
joseph = MyDjangoClass.objects.get(name="Joseph")
friends_of_joseph = joseph.fr...
Add a tooltip to a div
...
One thing to watch out for with a title tool tip is if the user click on the the your div the tooltip won't appear. This can be very frustrating... especially if your div looks like it should be clicked. eg: style="cursor: pointer;"
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Make an HTTP request with android
...t the video Google I/O 2010 - Android REST client applications(youtube.com/watch?v=xHXn3Kg2IQE 57min21sec) you would see that Apache HttpClient it is the most recommended one. I quote Virgil Dobjanschi(a software engineer on google that works on Android Application Group) "I would simply advise th...
Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?
...ing from Chet Haase at Google. I recommend finding his Google I/O talk and watch the whole video. It contains a lot of useful information and insight into Android.
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Generating a unique machine id
...mponents of Windows that in most cases no regular user would do it (again, watch out for hardcore hackers).
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