Question

How to loop through an object in JavaScript

Answer 1

let obj = {
  id: 383912,
  name: "Albus Dumbledore",
  academicrank: "Professor"
};

for (let [key, value] of Object.entries(obj)) {
  console.log(`${key}: ${value}`);
}

  
    
    
/*
run:
    
"id: 383912"
"name: Albus Dumbledore"
"academicrank: Professor"
    
*/

 

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Answer 2

let obj = {
  id: 383912,
  name: "Albus Dumbledore",
  academicrank: "Professor"
};
 
for (let key in obj) {
   if(obj.hasOwnProperty(key)) {
     console.log(`${key} : ${obj[key]}`)
   }
}
 
   
     
     
/*
run:
     
"id : 383912"
"name : Albus Dumbledore"
"academicrank : Professor"
     
*/

 

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