Find address from buffer like in memfind package

[webkitten]

Hello! I'm creating nw.js app with scanning memory, but memfind package doesn't work with nw

how to find address from buffer like this:

const MemoryFinder = require('memfind');
const mf = new MemoryFinder('notepad.exe');

mf.find('Hello World', block => {
    console.log(block.hexAddress, block.get(-5, 10).toString('binary'));
    // return true to stop find
});

// or

let addr;
const bufToFind = Buffer.from('Hello World');
mf.scan(block => {
    // don't put cpu-intensive code inside scan loop, e.g. Buffer.from()
    if (block.match(bufToFind)) {
        console.log(block.hexAddress, block.get(0, 20).toString());
        if (block.get(20)==0x65) {
            addr = block.address;
            return true;
            // return true to stop scan
        }
    }
});
if (addr) console.log(mf.read(addr-10, 128));

it returns addresses like:

5ab2780
5ab2960
5ab2978
5ab2b40
5ab2b58