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Eclipse error: 'Failed to create the Java Virtual Machine'

... macos eclipse-2020, add :"-vm" "/Library/Java/JavaVirtualMachines/jdk1.8.0_172.jdk/Contents/Home/bin/java" below "--launcher.appendVmargs" in eclipse.ini. – clark yu Mar 30 at 2:58 ...
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How to convert all tables from MyISAM into InnoDB?

...e first // // Actual code starts here $sql = "SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'your_database_name' AND ENGINE = 'MyISAM'"; $rs = mysql_query($sql); while($row = mysql_fetch_array($rs)) { $tbl = $row[0]; ...
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Why do people say that Ruby is slow? [closed]

...o numbers, indexing an array. Where other languages expose hacks (Python's __add__ method, Perl's overload.pm) Ruby does pure OO in all cases, and this can hurt performance if the compiler/interpreter is not clever enough. If I were writing a popular web application in Ruby, my focus would be on ca...
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Turn a simple socket into an SSL socket

...> You will need to initialize OpenSSL: void InitializeSSL() { SSL_load_error_strings(); SSL_library_init(); OpenSSL_add_all_algorithms(); } void DestroySSL() { ERR_free_strings(); EVP_cleanup(); } void ShutdownSSL() { SSL_shutdown(cSSL); SSL_free(cSSL); } Now fo...
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Reflection - get attribute name and value on property

...<string, string> GetAuthors() { Dictionary<string, string> _dict = new Dictionary<string, string>(); PropertyInfo[] props = typeof(Book).GetProperties(); foreach (PropertyInfo prop in props) { object[] attrs = prop.GetCustomAttributes(true); foreach...
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How to create an infinite loop in Windows batch file?

...it rem ** can be stopped with a syntax error call :stop ) :stop call :__stop 2>nul :__stop () creates a syntax error, quits the batch This could be useful if you need a really infinite loop, as it is much faster than a goto :loop version because a for-loop is cached completely once at sta...
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Call to undefined method mysqli_stmt::get_result

...r... if it isn't installed on your webspace you will have to work with BIND_RESULT & FETCH! https://secure.php.net/manual/en/mysqli-stmt.bind-result.php https://secure.php.net/manual/en/mysqli-stmt.fetch.php share ...
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How does one unit test routes with Express?

... a more detailed example. /// usercontroller.js var UserController = { _database: null, setDatabase: function(db) { this._database = db; }, findUserByEmail: function(email, callback) { this._database.collection('usercollection').findOne({ email: email }, callback); } }; module....
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Redirect parent window from an iframe action

...RL 'jsfiddle.net/ppkzS' from frame with URL 'parrisstudios.com/tests/iframe_redirect.html'. The frame attempting navigation of the top-level window is sandboxed, but the 'allow-top-navigation' flag is not set. – Bjarte Aune Olsen Mar 18 '15 at 9:09 ...
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What really is a deque in STL?

...t the map. Each data block is a T* which is allocated with some fixed size __deque_buf_size (which depends on sizeof(T)). share | improve this answer | follow ...