Encode JSON & Escape Unicode in JavaScript

encodeJsonUnicode.js

// Similar to json.dumps(obj, *, ensure_ascii=True) in Python

function encodeJsonUnicode(obj) {
    return JSON.stringify(obj).replace(/[^\0-\x7F]/g, (c) => {
        return '\\u' + ('0000' + c.charCodeAt(0).toString(16)).slice(-4);
    });
}

// decoding is simply JSON.parse(...);