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Although combinators have limited practical use, they are a useful tool in education to understand how programming is fundamentally linked to logic, and how very simple building blocks can combine to create very complex behaviour. In the context of Julia, learning how to create and use combinators...

Special Characters *?+[(){}^$|\./

Active record is an architectural pattern of modeling database objects. In this pattern classes match very closely the structure of underlying database.

collectgarbage(gcrule [, gcdata]) -- collect garbage using gcrule setmetatable(tab, {__mode = weakmode}) -- set weak mode of tab to weakmode parameterdetailsgcrule & gcdataAction to gc (garbage collector): "stop" (stop collecting), "restart" (start collecting again),...

This section provides an overview of what shopify is, and why a developer might want to use it. It should also mention any large subjects within shopify, and link out to the related topics. Since the Documentation for shopify is new, you may need to create initial versions of those related topic...

PARSENAME ( 'object_name' , object_piece ) 'object_name'object_pieceIs the name of the object for which to retrieve the specified object part. object_name is sysname. This parameter is an optionally-qualified object name. If all parts of the object name are qualified, this name can have four...

This section provides an overview of what teradata is, and why a developer might want to use it. It should also mention any large subjects within teradata, and link out to the related topics. Since the Documentation for teradata is new, you may need to create initial versions of those related to...

The iText 5 class names PdfPTable and PdfPCell were chosen because we already had classes named Table and Cell to create table and cell objects at the highest programming level. There was also a class named PdfTable to be used by iText internally. Those classes had a lot of flaws and they were dep...

This section provides an overview of what cakephp-3.0 is, and why a developer might want to use it. It should also mention any large subjects within cakephp-3.0, and link out to the related topics. Since the Documentation for cakephp-3.0 is new, you may need to create initial versions of those r...

This section provides an overview of what artificial-intelligence is, and why a developer might want to use it. It should also mention any large subjects within artificial-intelligence, and link out to the related topics. Since the Documentation for artificial-intelligence is new, you may need t...

In iText 5, we introduced the concept of page events to allow developers to add specific behavior when a document is opened, when a new page is opened, when a page ends, and when a document is closed. In the documentation, we made it very clear that it was forbidden to add content in the onStartP...

java [ <opt> ... ] <class-name> [ <argument> ... ] java [ <opt> ... ] -jar <jar-file-pathname> [ <argument> ... ] The java command is used for running a Java application from the command line. It is available as a part of any Java SE JRE or JDK....

In the original design for iText, it was possible to create a high-level Document object, and then have different DocListener objects listening to that Document object. This was achieved by using different writers: a PdfWriter, an HTMLWriter, and an RtfWriter. When using a PdfWriter, a PdfDocument...

/* Base64 Encoded Encryption / $enc_data = base64_encode( openssl_encrypt($data, $method, $password, true, $iv) ); / Decode and Decrypt */ $dec_data = base64_decode( openssl_decrypt($enc_data, $method, $password, true, $iv) ); This way of doing the encryption and encoding would not work as p...

Predicate Format String Substitions C format string specifiers: %d, %s, %f, etc Object substitution: %@ Keypath substitution: %K Predicate Comparison Operators =, ==: Left-hand expression equals right-hand expression >=, =>: Left-hand expression is greater than or equal to righ...