vim copy non linewise without leading or trailing spaces

Question

I am trying to create a mapping that will allow me to select a line of text non linewise so I can paste at curosr(not before or after) without introducing spaces that may have preceeded the line where it was yanked from.

This is what I was trying to do

 "copy non linewise
 nmap <leader>yy 0y$

Answer 1

nnoremap <Leader>yy ^yg_

^和g_分别类似于0和$，但它们不包括空白字符。