Difference between use and require (I listed the differences, need to know what else are there)
perl, perl-module
Solution
I think that the code you written by your own in the second point is self explanatory of the difference between the two ...
In practice "use" perform a "require" of the module and after that it automatically import the module, with "require" instead the module is only mandatory to be present but you have the freedom to import it when you need it ...
Given what stated above it result obvious that the question in the point 5 have no sense, since "require" doesn't import anything, there is no need to specify the module part to load, you can selectively load the part you need when you will do the import operation ...
Furthermore bear in mind that while "use" act at compile time(Perl compilation phase), "require" act at runtime, for this reason with "require" you will be able to import the package only if and/or when it is really needed .
Problem
I read the explanation even from `perldoc` and `StackOverflow`. But there is a little confusion. - `use` normally loads the module at compile time whereas `require` does at run time `use` calls the import function inbuilt only whereas `require` need to call import module separately like ``` BEGIN { require ModuleName; ModuleName->import; } ``` `require` is used if we want to load bigger modules occasionally. - `use` throws the exception at earlier states whereas `require` does when I encounters the issue With `use` we can selectively load the procedures not all but few like ``` use Module qw(foo bar) # it will load foo and bar only ``` is it possible in `require` also? Beisdes that are there another differences between `use` and `require`? Lot of discussion on google but I understood these above mentioned points only. Please help me other points.