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Is SecureRandom thread safe?

... edited Dec 22 '19 at 16:04 answered Sep 22 '09 at 18:02 er...
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TypeScript: Creating an empty typed container array

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What do the python file extensions, .pyc .pyd .pyo stand for?

... 491 .py: This is normally the input source code that you've written. .pyc: This is the compiled b...
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Remove duplicated rows using dplyr

...rame [3 x 3] ## Groups: x, y ## ## x y z ## 1 0 1 1 ## 2 1 0 2 ## 3 1 1 4 (In dplyr 0.2 you won't need the dummy z variable and will just be able to write row_number() == 1) I've also been thinking about adding a slice() function that would work like: df %>% group_by(x, y) %>% slice(fro...
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What is the exact meaning of IFS=$'\n'?

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HTML img scaling

... Volker E. 5,1821111 gold badges4141 silver badges6262 bronze badges answered Aug 28 '09 at 15:21 RiddlerDevRiddlerDev ...
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Export a graph to .eps file with R

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How get integer value from a enum in Rails?

... 142 You can get the integer values for an enum from the class the enum is on: Model.sale_infos # P...
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Select element based on multiple classes

... 614 You mean two classes? "Chain" the selectors (no spaces between them): .class1.class2 { /* s...
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jQuery changing style of HTML element

... 243 Use this: $('#navigation ul li').css('display', 'inline-block'); Also, as others have stated...