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Why is it faster to check if dictionary contains the key, rather than catch the exception in case it
... every iteration matters very little for performance. Compare 1st and 2nd table: codeproject.com/Articles/11265/…
– Dan Is Fiddling By Firelight
Apr 19 '13 at 21:12
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Is it better to return null or empty collection?
...omponent (from a library out of your control), might be rendering an empty table if an empty collection is passed, or no table at all, if null is passed.
in a Object-to-XML (JSON/whatever), where null would mean the element is missing, while an empty collection would render a redundant (and possibly...
Easy way to dismiss keyboard?
I have quite a few controls scattered throughout many table cells in my table, and I was wondering if there's an easier way to dismiss the keyboard without having to loop through all my controls and resigning them all as the first responder. I guess the question is.. How would I get the current firs...
What are the pros and cons of the leading Java HTML parsers? [closed]
...d HTMLCleaner just worked better.
I also use HTMLParser and Jericho for a table extraction task, which replaced some code written using Perl's libhtml-tableextract-perl. I use HTMLParser to filter the HTML for the table, then use Jericho to parse it. I agree with MJB's and Adam's comments that Jeri...
What is the meaning of the CascadeType.ALL for a @ManyToOne JPA association
... to the persistence provider that the join column should be in the ADDRESS table.
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How do I obtain crash-data from my Android application?
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Seems very unstable for me. The ACRA itself crashed and sent crash report about itself not the related app crash. -1
– Sandor
Sep 30 '11 at 8:47
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Display string as html in asp.net mvc view
...ripped out, with just the non-tag content remaining. I particularly had a table with a missing opening table tag, and then all my html tags from the entire string where ripped out completely.
So, if the above doesn't work, and you're still scratching your head, then also check you html for being v...
How to get rid of blank pages in PDF exported from SSRS
...dth, where the 2nd and 4th pages were displaying one of my fields from the table. I tried to set the layout size in report properties as width=18in and height =8.5in.
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Python Sets vs Lists
... due to near instant 'contains' checks: https://en.wikipedia.org/wiki/Hash_table
List implementation: usually an array, low level close to the metal good for iteration and random access by element index.
Set implementation: https://en.wikipedia.org/wiki/Hash_table, it does not iterate on a list, but...
Unique combination of all elements from two (or more) vectors
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Missing in this r-faq overview is the CJ-function from the data.table-package. Using:
library(data.table)
CJ(a, b, unique = TRUE)
gives:
a b
1: ABC 2012-05-01
2: ABC 2012-05-02
3: ABC 2012-05-03
4: ABC 2012-05-04
5: ABC 2012-05-05
6: DEF 2012-05-01
7: DEF 2012-0...