myapp/node_modules/regenerate-unicode-properties/Script_Extensions/Devanagari.js

const set = require('regenerate')(0x20F0);
set.addRange(0x900, 0x952).addRange(0x955, 0x97F).addRange(0x1CD0, 0x1CF6).addRange(0x1CF8, 0x1CF9).addRange(0xA830, 0xA839).addRange(0xA8E0, 0xA8FF);
module.exports = set;