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Ruby : How to write a gem? [closed]
...e tools, steps and pitfalls ?
Are there any good tutorials, screencasts, etc., which helped you learning how to do it ?
...
Load data from txt with pandas
...v('output_list.txt', sep=" ", header=None)
data.columns = ["a", "b", "c", "etc."]
Add sep=" " in your code, leaving a blank space between the quotes. So pandas can detect spaces between values and sort in columns. Data columns is for naming your columns.
...
What is the 'dynamic' type in C# 4.0 used for?
...ble to interact with an Object without having to cast it.
dynamic cust = GetCustomer();
cust.FirstName = "foo"; // works as expected
cust.Process(); // works as expected
cust.MissingMethod(); // No method found!
Notice we did not need to cast nor declare cust as type Customer. Because we declared...
javax.faces.application.ViewExpiredException: View could not be restored
... on which I logout, then I come back to first page and I click on any link etc or refresh page I get this exception. I guess it's normal (or maybe not:)) because I logged out and session is destroyed. What should I do to redirect user to for example index.xhtml or login.xhtml and save him from seein...
jQuery parent of a parent
...= $(parent).parent();
var parentParentParent = $(parentParent).parent();
etc.
knitr Markdown highlighting in Emacs?
...accordingly):
;; Just an Emacs personal dir containing polymode packages etc.
(setq MY-EMACS "~/conf/emacs")
(defun my-emacs (subfolder)
"Get path to personal dir + subfolder"
(concat (expand-file-name MY-EMACS) "/" subfolder))
;; ESS Markdown
;; -------------
(defun rmd-mode ()
"ESS Markdo...
Find TODO tags in Eclipse
...string for the ability to specify this workspace, that file, this project, etc.)
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Explain “claims-based authentication” to a 5-year-old
...ing some sort of mechanism (username/password, client secret, certificate, etc.) and that gives you a token that proves you are who you say you are. Then, you trade that access token for an ID token. That process will use your identity to find and build a list of claims, sign it and then hand you ba...
How to unzip a list of tuples into individual lists? [duplicate]
...elements from all inputs, starting with the first values, then the second, etc. By using *l you apply all tuples in l as separate arguments to the zip() function, so zip() pairs up 1 with 3 with 8 first, then 2 with 4 and 9. Those happen to correspond nicely with the columns, or the transposition of...
What's the difference between QMainWindow, QWidget and QDialog?
...tions to make it work well with common buttons on dialogs (accept, reject, etc.).
QMainWindow is designed around common needs for a main window to have. It has predefined places for a menu bar, a status bar, a toolbar, and other widgets. It does not have any built-in allowances for buttons like Q...