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Safely turning a JSON string into an object

...ill see an error thrown in the console with the dreaded "Error: unexpected token 'x'". var data; try { data = JSON.parse(jqxhr.responseText); } catch (_error) {} data || (data = { message: 'Server error, please retry' }); ...
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How does this giant regex work?

...ently found the code below in one of my directories, in a file called doc.php . The file functions or links to a file manager. It's quite nicely done. Basically, it lists all the files in the current directory, and it lets you change directories. ...
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Real escape string and PDO [duplicate]

...escape_string() with the PDO::quote() method. Here is an excerpt from the PHP website: <?php $conn = new PDO('sqlite:/home/lynn/music.sql3'); /* Simple string */ $string = 'Nice'; print "Unquoted string: $string\n"; print "Quoted string: " . $conn->quote($string) . "\n";...
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phpunit mock method multiple calls with different arguments

... The PHPUnit Mocking library (by default) determines whether an expectation matches based solely on the matcher passed to expects parameter and the constraint passed to method. Because of this, two expect calls that only differ in...
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Text Editor which shows \r\n? [closed]

...han installing any application for sure. In command line with proper setup PHP php -q <?php $t=file_get_contents("filename"); echo str_replace(array("\n", "\r"), array("\\n", "\\r"), $t); ?> share | ...
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Best practices for in-app database migration for Sqlite

...ng stringWithFormat:@"userdata.sqlite"]; _database = [[FMDatabase alloc] initWithPath:[documentsDir stringByAppendingPathComponent:databaseName]]; _database.logsErrors = YES; if (![_database openWithFlags:SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_FILEPROTECTI...
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Virtual functions and performance - C++

...s 1st level cache with more memory than my first computer had? Not at all. Allocating memory from main RAM will cost you more time than if all your functions were virtual. Its like the old, old days where people said structured programming was slow because all the code was split into functions, eac...
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How to write a JSON file in C#?

...ly into memory, but I was able to find a couple of key places where object allocations could be reduced...... (now) Json.Net (6.0) allocates 8 times less memory than JavaScriptSerializer ‡ Update since .Net Core 3.0 A new kid on the block since writing this is System.Text.Json which has been a...
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What is base 64 encoding used for?

... In a langange like php, were will binary data come from. We almost always work with string data which is text. – Cholthi Paul Ttiopic Sep 5 '16 at 14:02 ...
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Do I need Content-Type: application/octet-stream for file download?

...ht now; maybe later). RFC 2616 also mentions the possibility of extension tokens, and these days most browsers recognise inline to mean you do want the entity displayed if possible (that is, if it's a type the browser knows how to display, otherwise it's got no choice in the matter). This is of cou...