reference other field in object javascript code example

Example 1: javascript object get property or default

// won't work if obj.property is falsey
let value = obj.property || "default";

Example 2: object object javascript

person = {
    'name':'john smith'
    'age':41
};

console.log(person);
//this will return [object Object]
//use
console.log(JSON.stringify(person));
//instead