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Order data frame rows according to vector with specific order
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236
Try match:
df <- data.frame(name=letters[1:4], value=c(rep(TRUE, 2), rep(FALSE, 2)))
target...
Does order of where clauses matter in SQL?
Let's say I have a table called PEOPLE having 3 columns ID, LastName, FirstName , none of these columns are indexed.
LastName is more unique, and FirstName is less unique.
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Why does “,,,” == Array(4) in Javascript?
...ring()
"a,b,c"
How the comparison works is described in section 11.9.3 of the specification. There you will see (x == y):
8. If Type(x) is either String or Number and Type(y) is Object,
return the result of the comparison x == ToPrimitive(y).
(arrays are objects in JavaScript)
and ...
req.query and req.param in ExpressJS
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edited Aug 30 '13 at 3:20
answered Aug 30 '13 at 2:55
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Aligning a float:left div to center?
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3
Just in case anyone is struggling with the spaces that appear in between the elements, remove the the whitespace in your code by defining yo...
Installing specific laravel version with composer create-project
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edited Apr 14 '15 at 13:14
answered May 20 '14 at 8:15
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Sorting data based on second column of a file
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346
You can use the sort command:
sort -k2 -n yourfile
-n, --numeric-sort compare according to s...
Getting an empty JQuery object
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edited Jun 23 '11 at 5:44
answered May 22 '09 at 11:03
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How to prevent http file caching in Apache httpd (MAMP)
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321
+50
Tried t...