Shree questions

• JointJS: Hello World example doesn't work
• Concatenating strings
• Comments in source code [closed]
• Instantiate object of a class before main() executes
• Accessing private members [closed]
• Modify the last two characters of a string in Perl
• copyright character in vim
• Class with static members vs singleton
• String to enum in C++
• Differentiate between a unix directory and file in C and C++

Shree answers