How do I wrap a word in a function call using vim-surround?
ysiwf
vim-surround's f and F surrounds let you wrap any text object inside a function call, prompting you for the function name.
Tag: vim-surround
How do I wrap text with a custom HTML tag using vim-surround?
ysst
vim-surround's ysst sequence lets you wrap a text object with an arbitrary HTML or XML tag and prompts you to type the tag name.