Question

How to get the size of JSON object in javascript

Answer 1

const w = '{"worker" : [' +
'{"name":"Tom", "age":37},' +
'{"name":"Olivia", "age":42},' +
'{"name":"Jerry", "age":51},' +
'{"name":"Alessia", "age":29} ]}';
 
const JSONobj = JSON.parse(w); 
 
const size = Object.keys(JSONobj.worker).length

console.log(size);
 



 
/*
run:
 
4
 
*/

 

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Answer 2

const json = '{"id":383912,"name":"Albus Dumbledore","academicrank":"Professor"}';
 
const obj = JSON.parse(json);
 
const size = Object.keys(obj).length

console.log(size);
 



 
/*
run:
 
3
 
*/

 

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