Inline text diff algorithm. Simplified from https://neil.fraser.name/writing/diff/. For input text diff in HTML with Chinese input software.
npm i --save diff-text
var diffText = require('diff-text');
diffText('diff---text', 'diff+++text');
// will get array like below:
[
[0, 'diff'], // equal
[-1, '---'], // delete
[1, '+++'], // add
[0, 'text'] // equal
]> npm run test
> npm run pref
diff-text x 1,238,388 ops/sec ±1.22% (88 runs sampled)
ISC@ProtoTeam.