Node.js throws “btoa is not defined” error

Question

In my node.js application I did an npm install btoa-atob so that I could use the btoa() and atob() functions which are native in clien

Answer 1

I have a code shared between server and client and I needed an implementation of btoa inside it. I tried doing something like:

const btoaImplementation =  btoa || (str => Buffer.from(str).toString('base64'));

but the Server would crush with:

ReferenceError: btoa is not defined

while Buffer is not defined on the client.

I couldn't check window.btoa (it's a shared code, remember?)

So I ended up with this implementation:

const btoaImplementation = str => {
    try {
        return btoa(str);
    } catch(err) {
        return Buffer.from(str).toString('base64')
    }
};