:find

open a file by its name without having to provide a fully qualified path.

Configure the 'path'

'path' option allows us to specify a set of directories inside of which Vim will search when :find command is invoked.

:set path+=app/**

**: matches all subdirectories beneath the app/ directory.

Use :find to Look up Files by Name

:find Main.js<Tab>

after first Tab, vim expands the entire path of the first full match. after second Tab, vim expands the next matching full filepath.

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