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Using querySelector with IDs that are numbers

...) + '"]'); }); return selector; }; var myselector = ".dog #980sada_as div span#aside:hover div.apple#05crab:nth-of-type(2), .ginger #2_green_div, div.cupcake #darwin p#23434-346365-53453"; var clean_myselector = cleanSelector(myselector); // print to show difference console.log(myselector...
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Mean per group in a data.frame [duplicate]

... object. It’s easier to do what you’re after with dplyr: d %>% group_by(Name) %>% mutate(mean1=mean(Rate1), mean2=mean(Rate2)) – jbaums May 29 '19 at 9:48 ...
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Stop and Start a service via batch or cmd file?

...5 Return Codes: The NET command does not return the documented Win32_Service class return codes (Service Not Active,Service Request Timeout, etc) and for many errors will simply return Errorlevel 2. Look here: http://ss64.com/nt/net_service.html ...
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MySQL “WITH” clause

...ueries-with.html Sybase 11 and later: http://dcx.sybase.com/1100/en/dbusage_en11/commontblexpr-s-5414852.html SQLite 3.8.3 and later: http://sqlite.org/lang_with.html HSQLDB: http://hsqldb.org/doc/guide/dataaccess-chapt.html#dac_with_clause Firebird 2.1 and later (the first Open Source DBMS to suppo...
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How do I make a redirect in PHP?

...at the W3C says 4. Alternatives You may use the alternative method of http_redirect($url); which needs the PECL package pecl to be installed. 5. Helper Functions This function doesn't incorporate the 303 status code: function Redirect($url, $permanent = false) { header('Location: ' . $url, true...
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How do I clear/delete the current line in terminal?

... Cut word before the cursor Ctrl+y Paste the last deleted command Ctrl+_ Undo Ctrl+u Cut everything before the cursor Ctrl+xx Toggle between first and current position Ctrl+l Clear the terminal Ctrl+c Cancel the command Ctrl+r Search command in history - type the search term Ctrl+j End...
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Why does Math.round(0.49999999999999994) return 1?

...ang/Math.html#round%28double%29 2. http://bugs.java.com/bugdatabase/view_bug.do?bug_id=6430675 (credits to @SimonNickerson for finding this) 3. http://docs.oracle.com/javase/7/docs/api/java/lang/Math.html#round%28double%29 4. http://grepcode.com/file/repository.grepcode.com/java/root/jdk/op...
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Keyboard shortcut to change font size in Eclipse?

...ered May 19 '16 at 13:33 ROMANIA_engineerROMANIA_engineer 44.6k2323 gold badges184184 silver badges169169 bronze badges ...
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What's the difference between using INDEX vs KEY in MySQL?

... at table info in the latest version of SQLYog it shows KEY keyname (column_name) when I created the table with INDEX keyname (column_name). The fact that it is a synonym explains it perfectly. – crmpicco Apr 2 '14 at 10:10 ...
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dynamic_cast and static_cast in C++

I am quite confused with the dynamic_cast keyword in C++. 10 Answers 10 ...