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General suggestions for debugging in R
...ou source() a .R file and it returns an error at line #n, but you need to know what function is located at line #n.
setBreakpoint() takes a source file name and line number and sets a breakpoint there
The codetools package, and particularly its checkUsage function can be particularly helpful in q...
JavaScript regex multiline flag doesn't work
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You are looking for the /.../s modifier, also known as the dotall modifier. It forces the dot . to also match newlines, which it does not do by default.
The bad news is that it does not exist in JavaScript (it does as of ES2018, see below). The good news is that you can ...
How to test that no exception is thrown?
I know that one way to do it would be:
15 Answers
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.bashrc/.profile is not loaded on new tmux session (or window) — why?
...put source ~/.bashrc or source ~/.profile
Restart tmux.
The issue should now be fixed.
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Knight's Shortest Path on Chessboard
...ely bewildered at. However, I feel as though it's a concept I should learn now rather than cross my fingers that it never comes up.
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Calculate the median of a billion numbers
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Ah, my brain has just kicked into gear, I have a sensible suggestion now. Probably too late if this had been an interview, but never mind:
Machine 1 shall be called the "control machine", and for the sake of argument either it starts with all the data, and sends it in equal parcels to the oth...
Simple logical operators in Bash
...ssions with more quirks (but older and more portable). Don't write any for now; start worrying about them when you find scripts that contain them.
This is the idiomatic way to write your test in bash:
if [[ $varA == 1 && ($varB == "t1" || $varC == "t2") ]]; then
If you need portability ...
Visual Studio 2010 annoyingly opens documents in wrong MDI pane
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OK so now a couple of months later I no longer seem to have this problem. So props to Josh! If anyone else experiences this same issue then I would suggest trying the above.
– Mike Chamberlain
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Eclipse: How do you change the highlight color of the currently selected method/expression?
...references'
Go to General > Editors > Text Editors > Annotations. Now look for "PHP elements 'read' occurrences" and "PHP elements 'write' occurrences". You can select your desired colour there.
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Viewing all `git diffs` with vimdiff
... @dotancohen Really Thanks i have never notice that on silly mistake now i can edit my answer.
– Nanhe Kumar
Aug 21 '13 at 20:17
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