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JavaScript: Overriding alert()
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+1 on the proxy pattern to truly override the func and ensure it doesn't get tampered with!
– Josh Stodola
Nov 13 '09 at 15:15
15
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Regular expression matching a multiline block of text
...e.MULTILINE)
I think your biggest problem is that you're expecting the ^ and $ anchors to match linefeeds, but they don't. In multiline mode, ^ matches the position immediately following a newline and $ matches the position immediately preceding a newline.
Be aware, too, that a newline can consi...
NSURLRequest setting the HTTP header
...de to make a request, but it's returning nil data. I tried to what's wrong and only thing i could come up was the response value coming back has different value for "Content-Type" as opposed to what i'm trying to append in the beginning of code. request.setValue("Some value", forHTTPHeaderField: "Co...
How to sort a HashSet?
...ements sorted for this one occurrence, then just temporarily create a List and sort that:
Set<?> yourHashSet = new HashSet<>();
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List<?> sortedList = new ArrayList<>(yourHashSet);
Collections.sort(sortedList);
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Why is SELECT * considered harmful?
...s more data to move from the database server to the client, slowing access and increasing load on your machines, as well as taking more time to travel across the network. This is especially true when someone adds new columns to underlying tables that didn't exist and weren't needed when the origina...
Any difference between First Class Function and High Order Function
I'm wondering whether/what difference between First Class Function and High Order Function .
6 Answers
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get just the integer from wc in bash
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You can use the cut command to get just the first word of wc's output (which is the line or word count):
lines=`wc -l $f | cut -f1 -d' '`
words=`wc -w $f | cut -f1 -d' '`
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Efficiently updating database using SQLAlchemy ORM
I'm starting a new application and looking at using an ORM -- in particular, SQLAlchemy.
6 Answers
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How to sort a list/tuple of lists/tuples by the element at a given index?
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@Stephen using itemgetter is faster and simpler: key=itemgetter(1) and at the beginning of the file: from operator import itemgetter
– Joschua
Mar 13 '13 at 20:08
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how to use javascript Object.defineProperty
...ed to find EVERY occurence of the discount modification in the client code and add a line
if(obj.discount>80) obj.discount = 80;
Then the e-shop owner may further change his strategy, like "if the customer is reseller, the maximal discount can be 90%". And you need to do the change on multiple...