Difference Between Console.log(obj) And Console.log(json.stringify(obj))

After receiving a JSON Object from a SDK, The amount of fields in console.log(JSON.stringify(obj)) are fewer, but there are some fields which are in console.log(JSON.stringify(obj

Solution 1:

The JSON.stringify() method converts a JavaScript object or value to a JSON string, optionally replacing values if a replacer function is specified or optionally including only the specified properties if a replacer array is specified.

JSON.stringify(obj, null, 2)

you can make it print more nicely. The last number determines the amount of spaces in indentation:

console.log(obj)

Using the Console API you can print any object to the console. This will work on any browser.

Solution 2:

Look at this code that the result in console.log is mutating.

const obj = {
  value: 5
};

console.log(obj);

setTimeout(() => {
  obj.value = 10;
}, 100);

You can get original value if use console.log(JSON.stringify(obj))

const obj = {
  value: 5
};
    
console.log(JSON.stringify(obj));

setTimeout(() => {
  obj.value = 10;
}, 100);

Solution 3:

When you are getting data from json created you can make your question more clear like this way

1) console.log(obj) -> means you will get json Javascript object like in javascript serialize array

2) console.log(JSON.stringify(obj)) -> means you will get that json Javascript object to string and then you will use for getting data in this way for(var i in (JSON.stringify(obj)) { } you can easily get data inside that json

or if you want to convert again in javascript object you can use JSON.parse(JSON.stringify(obj)) then the data becomes a JavaScript object.

example :

var obj = { name: "John", age: 30, city: "New York" };

1) Use the JavaScriptfunctionJSON.stringify() to convert it into a string.

var myJSON = JSON.stringify(obj);

2) Use the JavaScriptfunctionJSON.parse() to convert text-string into a JavaScriptobject:

var obj = JSON.parse('{ "name":"John", "age":30, "city":"New York"}');

1) console.log(obj); 
output : {name: "John", age: 30, city: "New York"}

2) console.log(myJSON ); 
output : {"name":"John","age":30,"city":"New York"}

2) console.log( JSON.parse(myJSON )); 
output : {name: "John", age: 30, city: "New York"}

I Hope I Make it clear your question!