is-inner-link
Returns true if a link targets a directory inside its parent directory
Installation
<npm|yarn|pnpm> add is-inner-linkUsage
'use strict'
const isInnerLink = require('is-inner-link')
isInnerLink('node_modules', 'foo')
.then(link => console.log(link))
.catch(err => console.error(err))
//> {isInner: false, target: '/zkochan/foo'}