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jQuery returning “parsererror” for ajax request
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I encountered this problem when my php script had an error, and was returning non-JSON data - a useful suggestion to disable dataType indeed!
– Sharadh
May 14 '14 at 19:18
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In Python, when to use a Dictionary, List or Set?
... and x not in l
l[i], l[i:j], l[i:j:k]
len(l), min(l), max(l)
l.count(x)
l.index(x[, i[, j]]) - index of the 1st occurrence of x in l (at or after i and before j indeces)
A list also implements all of the mutable sequence operations:
l[i] = x - item i of l is replaced by x
l[i:j] = t - slice of ...
Why use multiple columns as primary keys (composite primary key)
..." link is particularly stupid, the info is self-serving and false. 2) The index on the columns that make the row unique cannot be avoided. A "surrogate" ID with an index is always an additional column and an additional index. Rather silly because it is redundant. And slower.
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Unbound classpath container in Eclipse
...he "project file"
Install JDK1.5 from http://java.sun.com/javase/downloads/index_jdk5.jsp and see whether you can fix paths
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Heatmap in matplotlib with pcolor?
...pen("http://datasets.flowingdata.com/ppg2008.csv")
nba = pd.read_csv(page, index_col=0)
# Normalize data columns
nba_norm = (nba - nba.mean()) / (nba.max() - nba.min())
# Sort data according to Points, lowest to highest
# This was just a design choice made by Yau
# inplace=False (default) ->tha...
What are the differences between vector and list data types in R?
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Technically lists are vectors, although very few would use that term. "list" is one of several modes, with others being "logical", "character", "numeric", "integer". What you are calling vectors are "atomic vectors" in strict R parl...
Blocks and yields in Ruby
... Let's simplify that a bit: File.readlines("readfile.rb").each_with_index do |line, index| puts "#{index + 1}: #{line}" end and laugh even harder at the Java guys.
– Michael Hampton
Dec 29 '14 at 4:17
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.net implementation of bcrypt
...han BCrypt.dll or it will conflict with the new Windows API in Vista that calls functions in a 'bcrypt.dll', so if you have Bcrypt.net as Bcrypt.dll in your web app bin/ directory Windows won't be able to find the correct dll and you will get some cryptic errors.
– thelsdj
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Difference between UTF-8 and UTF-16?
...in UTF-8 cons:
Many common characters have different length, which slows indexing by codepoint and calculating a codepoint count terribly.
Even though byte order doesn't matter, sometimes UTF-8 still has BOM (byte order mark) which serves to notify that the text is encoded in UTF-8, and also break...
How to pass all arguments passed to my bash script to a function of mine? [duplicate]
...y), and then reference them as e.g. "${args[0]}" etc (note that bash array indexes start at 0, so $1 will be in args[0], etc).
Leaving off the double-quotes, with either $@ or $*, will try to split each argument up into separate words (based on whitespace or whatever's in $IFS), and also try to expa...