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Get list from pandas DataFrame column headers

...pears, again cols # ['A', 'B', 'C'] ... if you're the kind of person who converts coffee to typing sounds, well, this is going consume your coffee more efficiently ;) P.S.: if performance is important, you will want to ditch the solutions above in favour of df.columns.to_numpy().tolist() # ...
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How to send a stacktrace to log4j?

...rce Java library with stack trace filtering, Silent String parsing Unicode converter and Version comparison See the paragraph "Stacktrace noise filter" share | improve this answer | ...
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How to make an app's background image repeat

I have set a background image in my app, but the background image is small and I want it to be repeated and fill in the whole screen. What should I do? ...
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How to distinguish mouse “click” and “drag”

...pt> This is a direct clone of what @wong2 did in his answer, but converted to RxJs. Also interesting use of sample. The sample operator will take the latest value from the source (the merge of mousedown and mousemove) and emit it when the inner observable (mouseup) emits. ...
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What's the false operator in C# good for?

... You can use it to override the && and || operators. The && and || operators can't be overridden, but if you override |, &, true and false in exactly the right way the compiler will call | and & when you write || and &&. For example, ...
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Exit single-user mode

...aster GO DECLARE @kill varchar(max) = ''; SELECT @kill = @kill + 'KILL ' + CONVERT(varchar(10), spid) + '; ' FROM master..sysprocesses WHERE spid > 50 AND dbid = DB_ID('<Your_DB_Name>') EXEC(@kill); GO SET DEADLOCK_PRIORITY HIGH ALTER DATABASE [<Your_DB_Name>] SET MULTI_USER WITH NO...
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Multiline Comment Workarounds?

... into RStudio to see the code-chunk quick-jump structure.") return converted object } #### Code. #### ^~~~~~~~~~~~~~~~~~~~~~~~~~ <= Notice that this comment section isnt in the jump menu! Putting an apostrophe in isn't causes RStudio to par...
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Is there a way to add/remove several classes in one single instruction with classList?

...sible to use it ith the classList.add() method or must the DOMTokenList be converted in a real array? – xela84 Mar 21 '19 at 12:32 ...
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How can I increment a date by one day in Java?

...Docs would clarify that this would increment larger fields (like the month and year). Calendar.roll "Adds or subtracts (up/down) a single unit of time on the given time field without changing larger fields" .. Again, "larger fields" is vague but that seems consistent with Sam's comment. I wish t...
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get size of json object

i have a json object that gets returned by an AJAX request and I am having some trouble with the .length because it keeps returning undefined . Just wondering if I'm using it right: ...