What is the difference between include and extend in Ruby?

extend – adds the specified module’s methods and constants to the target’s metaclass (i.e. the singleton class) e.g. if you call Klazz.extend(Mod), now Klazz has Mod’s methods (as class methods) if you call obj.extend(Mod), now obj has Mod’s methods (as instance methods), but no other instance of of obj.class has those methods added. extend is … Read more

What is the difference between include and require in Ruby?

What’s the difference between “include” and “require” in Ruby? Answer: The include and require methods do very different things. The require method does what include does in most other programming languages: run another file. It also tracks what you’ve required in the past and won’t require the same file twice. To run another file without … Read more

Inserting a PDF file in LaTeX

Use the pdfpages package. \usepackage{pdfpages} To include all the pages in the PDF file: \includepdf[pages=-]{myfile.pdf} To include just the first page of a PDF: \includepdf[pages={1}]{myfile.pdf} Run texdoc pdfpages in a shell to see the complete manual for pdfpages.

Include another HTML file in a HTML file

In my opinion the best solution uses jQuery: a.html: <html> <head> <script src=”https://stackoverflow.com/questions/8988855/jquery.js”></script> <script> $(function(){ $(“#includedContent”).load(“https://stackoverflow.com/questions/8988855/b.html”); }); </script> </head> <body> <div id=”includedContent”></div> </body> </html> b.html: <p>This is my include file</p> This method is a simple and clean solution to my problem. The jQuery .load() documentation is here.

Difference between require, include, require_once and include_once?

There are require and include_once as well. So your question should be… When should I use require vs. include? When should I use require_once vs. require The answer to 1 is described here. The require() function is identical to include(), except that it handles errors differently. If an error occurs, the include() function generates a … Read more

What is the difference between #include and #include “filename”?

What differs is the locations in which the preprocessor searches for the file to be included. #include <filename>   The preprocessor searches in an implementation-defined manner, normally in directories pre-designated by the compiler/IDE. This method is normally used to include header files for the C standard library and other header files associated with the target … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)