const Entities = {
    ' ': ' ',
    '&lt;': '<',
    '&gt;': '>',
    '&quot;': '"',
};

const keys = Object.keys(Entities);

export const encode = (str) => {
    for (const code of keys) {
        const char = Entities[code];
        const reg = RegExp(char, 'g');
        
        str = str.replace(reg, code);
    }
    
    return str;
};

export const decode = (str) => {
    for (const code of keys) {
        const char = Entities[code];
        const reg = RegExp(code, 'g');
        
        str = str.replace(reg, char);
    }
    
    return str;
};