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How to get a value from a cell of a dataframe?

... Please improve the quality of your answer with a little bit more explanation. – Franck Gamess Jun 25 '18 at 20:08 ...
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Printing hexadecimal characters in C

... promote all integers smaller than int to int. Since char is an integer (8-bit signed integer in your case), your chars are being promoted to int via sign-extension. Since c0 and 80 have a leading 1-bit (and are negative as an 8-bit integer), they are being sign-extended while the others in your sa...
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Are delphi variables initialized with a value by default?

...zero, Boolean fields are False, and Variants are set to Unassigned. (See NewInstance and InitInstance in Chapter 5 for details.)" It's true that local-in-scope variables need to be initialised... I'd treat the comment above that "Global variables are initialised" as dubious until provided with a r...
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How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?

... A.H.A.H. 54.2k1313 gold badges7979 silver badges110110 bronze badges ...
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Detecting touch screen devices with Javascript

... In order to also detect IE 10 touch I'm using: (window.navigator.msMaxTouchPoints || ('ontouchstart' in document.documentElement)); – Alexander Kellett Mar 8 '13 at 10:45 ...
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TCP: can two different sockets share a port?

... which is capable to identify a socket. In case of the TCP, a port is a 16 bit integer, but there are other protocols as well (for example, on unix sockets, a "port" is essentially a string). The main problem is the following: if an incoming packet arrives, the kernel can identify its socket by its...
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Check if a div exists with jquery [duplicate]

... seems to me that .length defeats .length > 0, so it's kind of a double-win. Still, thanks for pointing this out. – karim79 Nov 27 '13 at 23:44 add a comment ...
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Lombok is not generating getter and setter

...(e.g. (e.g. you can find in ~/.m2/repository/org/projectlombok/lombok/1.16.10/lombok-1.16.10.jar), run it (Example: java -jar lombok-1.16.10.jar). A window should appear, browse to your eclipse.exe location. Click on install. Launch Eclipse, update project configuration on all projects and voila. ...
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C# HttpClient 4.5 multipart/form-data upload

...EST API. I don't like to comment for thanks, but thanks. It's portable for Windows Phone 8. – Léon Pelletier Jun 25 '13 at 8:50 ...
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How to detect when cancel is clicked on file input?

...quiring a pretty limiting event blocking) you can achieve it with the following: document.body.onfocus = function(){ /*rock it*/ } What's nice about this, is that you can attach/detach it in time with the file event, and it also seems to work fine with hidden inputs (a definite perk if you're usi...