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How can I check whether a option already exist in select by JQuery
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This evaluates to true if it already exists:
$("#yourSelect option[value='yourValue']").length ...
How to compute the similarity between two text documents?
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10 Answers
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Ruby replace string with captured regex pattern
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193
Try '\1' for the replacement (single quotes are important, otherwise you need to escape the \)...
cocktail party algorithm SVD implementation … in one line of code?
...mentation is http://www.cs.nyu.edu/~roweis/kica.html
ok, here's code -
[x1, Fs1] = audioread('mix1.wav');
[x2, Fs2] = audioread('mix2.wav');
xx = [x1, x2]';
yy = sqrtm(inv(cov(xx')))*(xx-repmat(mean(xx,2),1,size(xx,2)));
[W,s,v] = svd((repmat(sum(yy.*yy,1),size(yy,1),1).*yy)*yy');
a = W*xx; %W is...
What algorithm can be used for packing rectangles of different sizes into the smallest rectangle pos
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answered Jul 31 '09 at 16:33
SPWorleySPWorley
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How do I exchange keys with values in a dictionary?
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17 Answers
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Why would one declare a Java interface method as abstract?
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148
According to the Java Language Specification, the abstract keyword for interfaces is obsolete ...
SQL Server - Create a copy of a database table and place it in the same database?
... table ABC in a database DB. I want to create copies of ABC with names ABC_1, ABC_2, ABC_3 in the same DB. How can I do that using either Management Studio (preferably) or SQL queries ?
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MySQL Insert Where query
...mn is unique or primary key:
If you're trying to insert a new row with ID 1 you should be using:
INSERT INTO Users(id, weight, desiredWeight) VALUES(1, 160, 145);
If you're trying to change the weight/desiredWeight values for an existing row with ID 1 you should be using:
UPDATE Users SET weigh...