Empty JSON cells deleter (can be used in Postman prerequests)

postmanEmptyCellsDeleter.js

const checkBodyType = (body) => {
    if(Array.isArray(body)) return 0;
    else if(typeof body == "object") return 1;
    else throw new Error("Unknown type of the body");
}
const definePropertySettings = { configurable: true, enumerable: true, writable: true }

const deleteEmptyValues = (currentBody) => {
    if(typeof currentBody === "string") currentBody = JSON.parse(currentBody);

    let bodyType = checkBodyType(currentBody);
    let newBody;

    if(bodyType == 1) newBody = {};
    else newBody = [];

    for(const key in currentBody) {
        if(!currentBody.hasOwnProperty(key)) continue;

        if(Array.isArray(currentBody[key])) {
            if(currentBody[key].length === 0) continue;
            
            let foundValue = deleteEmptyValues(currentBody[key]);
            if(foundValue.length === 0) continue;

            if(bodyType == 1) {
                Object.defineProperty(newBody, key, {
                    ...definePropertySettings,
                    value: foundValue
                });
            }
            else {
                newBody.push(foundValue);
            }

            continue;
        } else if(typeof currentBody[key] == "object") {
            let foundValue = deleteEmptyValues(currentBody[key]);
            let objectEntries = Object.entries(foundValue);

            if(objectEntries.length === 0) continue;

            if(bodyType == 1) {
                Object.defineProperty(newBody, key, {
                    ...definePropertySettings,
                    value: foundValue
                });
            }
            else newBody.push(foundValue);

            continue;
        }else if(typeof currentBody[key] == "string") {
            if(currentBody[key] === "") continue;
            else if(currentBody[key].startsWith("{{") && currentBody[key].endsWith("}}")) {
                let firstAttempt = currentBody[key].substring(2, currentBody[key].length-1);
                let finalAttempt = firstAttempt.substring(0, firstAttempt.length-1);

                if(pm.variables.has(finalAttempt)) {
                    let value = pm.variables.get(finalAttempt);

                    if(typeof value == "string" && value.length === 0) continue;
                }
            }
        }
        else if(typeof currentBody[key] == "undefined") continue;
        else if(typeof currentBody[key] == "function") continue;
        else if(typeof currentBody[key] == "symbol") continue;

        if(bodyType == 1) {
            Object.defineProperty(newBody, key, {
                ...definePropertySettings,
                value: currentBody[key]
            });
        }
        else newBody.push(currentBody[key]);
    }

    return newBody;
}

Hello Mondonno! Thank you very much for trying out the request and pointing out some of my errors. Really appreaciate your time and suggestions. I will look deeper into my code. Thanks!! =))

great script. exactly what I needed. Just a note, in your postman usage "converted" might need to be "convertedBody"