Tutorial by Topics: ble

[[local] mt = ]getmetatable(t) --> retrieve associated metatable for 't' [[local] t = ]setmetatable(t, mt) --> set the metatable for 't' to 'mt' and returns 't' ParameterDetailstVariable referring to a lua table; can also be a table literal.mtTable to use as a metatable; can have ze...

The Open University (1999) Relational Database Systems: Block 2 Relational Theory, Milton Keynes, The Open University.

DECLARE @VariableName DataType [ = Value ] ; SET @VariableName = Value ;

ALTER [IGNORE] TABLE tbl_name [alter_specification [, alter_specification] ...] [partition_options] alter_specification: table_options | ADD [COLUMN] col_name column_definition [FIRST | AFTER col_name ] | ADD [COLUMN] (col_name column_definition,...) | ADD {INDEX|KE...

Please play with these concepts yourself to really master them! The elm-repl (see the Introduction to the REPL) is probably a good place to play around with the code above. You can also play with elm-repl online.

Immutable objects have fixed state (no setters), so all state must be known at object creation time. Although not technically required, it is best practice to make all fields final. This will make the immutable class thread-safe (cf. Java Concurrency in Practice, 3.4.1). The examples show severa...

objectskeysAn array containing the values for the new dictionary.CellAn array containing the keys for the new dictionary. Each key is copied and the copy is added to the dictionary.

public class MyClass implements Comparable<MyClass> public class MyComparator implements Comparator<SomeOtherClass> public int compareTo(MyClass other) public int compare(SomeOtherClass o1, SomeOtherClass o2) When implementing a compareTo(..) method which depends upon a doub...

The most common pitfall with scope arises in parallelization. All variables and functions must be passed into a new environment that is run on each thread.

ParameterDetailsPORTPort that the Meteor app will be available on.MONGO_URLURL to connect to the Mongo instance.ROOT_URL...OPLOG_URL...MONGO_OPLOG_URL...METEOR_ENV...NODE_ENV...NODE_OPTIONS...DISABLE_WEBSOCKETS...MAIL_URL...DDP_DEFAULT_CONNECTION_URL...HTTP_PROXY...HTTPS_PROXY...METEOR_OFFLINE_CATA...