Circular structure to JSON

index.js

https://stackoverflow.com/a/31557814/3363138

function simpleStringify(object) {
    var simpleObject = {};
    for (var prop in object) {
        if (!object.hasOwnProperty(prop)) {
            continue;
        }
        if (typeof (object[prop]) == 'object') {
            continue;
        }
        if (typeof (object[prop]) == 'function') {
            continue;
        }
        simpleObject[prop] = object[prop];
    }
    return JSON.stringify(simpleObject); // returns cleaned up JSON
};

var xxx = simpleStringify(valuex)