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R object identification

...am often ending up with a function producing output for which I don't understand the output data type. I'm expecting a list and it ends up being a list of lists or a data frame or something else. What's a good method or workflow for figuring out the output data type when first using a function? ...
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Conversion of a datetime2 data type to a datetime data type results out-of-range value

I've got a datatable with 5 columns, where a row is being filled with data then saved to the database via a transaction. 26...
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Open directory dialog

I want the user to select a directory where a file that I will then generate will be saved. I know that in WPF I should use the OpenFileDialog from Win32, but unfortunately the dialog requires file(s) to be selected - it stays open if I simply click OK without choosing one. I could "hack up" the f...
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Git merge reports “Already up-to-date” though there is a difference

I have a git repository with 2 branches: master and test. 15 Answers 15 ...
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How to randomize (shuffle) a JavaScript array?

I have an array like this: 58 Answers 58 ...
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Removing trailing newline character from fgets() input

I am trying to get some data from the user and send it to another function in gcc. The code is something like this. 13 Answ...
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Unicode character for “X” cancel / close?

I want to create a close button using CSS only. 16 Answers 16 ...
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Automatically capture output of last command into a variable using Bash?

I'd like to be able to use the result of the last executed command in a subsequent command. For example, 22 Answers ...
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When to use: Java 8+ interface default method, vs. abstract method

Java 8 allows for default implementation of methods in interfaces called Default Methods . 15 Answers ...
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Array versus List: When to use which?

What are the scenarios when one is preferable over the other? And why? 16 Answers 16 ...