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When should I use double or single quotes in JavaScript?

... option, new in ECMAScript 6, is template literals which use the backtick character: alert(`Use "double" and 'single' quotes in the same string`); alert(`Escape the \` back-tick character and the \${ dollar-brace sequence in a string`); Template literals offer a clean syntax for: variable interpol...
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PDO's query vs execute

... multiple times. Example of prepared statements: $sth = $dbh->prepare('SELECT name, colour, calories FROM fruit WHERE calories < :calories AND colour = :colour'); $sth->bindParam(':calories', $calories); $sth->bindParam(':colour', $colour); $sth->execute(); // $calories or $color...
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What are the most common SQL anti-patterns? [closed]

...ost programmers' tendency to mix their UI-logic in the data access layer: SELECT FirstName + ' ' + LastName as "Full Name", case UserRole when 2 then "Admin" when 1 then "Moderator" else "User" end as "User's Role", case SignedIn when 0 then "Logged i...
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Lock, mutex, semaphore… what's the difference?

... just one active thread from many others within one process. The other non selected threads (@ acquiring this object) are put to sleep. [No interprocess capability, very primitive object]. 2) Mutex Semaphore (aka Mutex)= Kernel object used for allowing the execution of just one active thread from ...
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How do you read a file into a list in Python? [duplicate]

...so, watch your backslashes in windows path names, as those are also escape chars in strings. You can use forward slashes or double backslashes instead. share | improve this answer | ...
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Android AlertDialog Single Button

...> public class MainActivity extends AppCompatActivity { String select; String[] fruitNames; Button infoDialog, iconDialog, rateDialog, singleOptionDialog, multiOptionDialog; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstan...
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How can I implement an Access Control List in my Web MVC application?

...ter. Or were you question kinda "long-form", that cannot be crammed in 140 chars ? – tereško Sep 28 '12 at 3:17 Reads...
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How can I concatenate regex literals in JavaScript?

... If you need to escape a char, then use double backslashes: new Regexp('\\$' + "flum") – Jeff Lowery Nov 20 '15 at 22:29 ...
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Creating a div element in jQuery [duplicate]

... @halfer vice versa then, use single quotes in javascript for selectors and any appended html with double quotes. – Ricki Oct 22 '11 at 18:04 72 ...
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ssh “permissions are too open” error

...ress Add... then type your name in the text box "Enter the object names to select" then press Check Names button (and press OK and another OK) then your name should be listed in the Security tab – Supawat Pusavanno Oct 16 '19 at 19:23 ...