Substitute Symbolic Codes in an Object with Written Text

Question

Substitute Symbolic Codes in an Object with Written Text

Here's the structure of the object:

{ where: { [Symbol(or)]: [ [Object], [Object] ] },hooks: true, rejectOnEmpty: false }

When I use JSON.stringify on it, the result is:

{"where":{},"hooks":true,"rejectOnEmpty":false}

This happens because [Symbol(or)] is undefined and gets removed by stringify.

The value originates from Sequelize operators, particularly Op.or. Is there a way to make stringify convert this into a string, so the output would be:

{"where":{"[Symbol(or)]": [[<<stringifiedObject>>], [<<stringifiedObject>>]]},"hooks":true,"rejectOnEmpty":false}

I am aware that I could use a custom function with JSON.stringify to replace undefined with a placeholder, but I prefer to keep the original Symbol in the string to differentiate between Symbol(and) and Symbol(or), even if both are undefined.

javascript json sequelize.js stringify

Answer 1

Answer №1

Resolved using the following function:

const clean = (data) => {
    try {
        const keys = Reflect.ownKeys(data);
        const result = {};
        keys.forEach((k) => {
            let value = data[k];
            if (Object.prototype.toString.call(value) === '[object Object]') {
                value = clean(value);
            }
            if (typeof k === 'symbol') {
                const newKey = `${String(k)}`;
                result[newKey] = value;
            } else {
                result[k] = value;
            }
        });
        return result;
    } catch (error) {
        console.log(error);
    }
};

Reflect.ownKeys fetches all keys, including Symbols.

Then, I validate if a key is a Symbol and convert it to a string. Recursive function calls are made to apply the same procedure to nested objects.

Answer 2

Resolved using the following function:

const clean = (data) => {
    try {
        const keys = Reflect.ownKeys(data);
        const result = {};
        keys.forEach((k) => {
            let value = data[k];
            if (Object.prototype.toString.call(value) === '[object Object]') {
                value = clean(value);
            }
            if (typeof k === 'symbol') {
                const newKey = `${String(k)}`;
                result[newKey] = value;
            } else {
                result[k] = value;
            }
        });
        return result;
    } catch (error) {
        console.log(error);
    }
};

Reflect.ownKeys fetches all keys, including Symbols.

Then, I validate if a key is a Symbol and convert it to a string. Recursive function calls are made to apply the same procedure to nested objects.

Substitute Symbolic Codes in an Object with Written Text

Answer №1

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