Question

How to iterate over object in JavaScript

Answer 1

class Worker {
    constructor(id, name, age) {
        this.id = id;
        this.name = name;
        this.age = age;
    }
}
    
const worker = new Worker(2345, 'Tom', 54);
  
for (let key in worker) {
     console.log(key, worker[key]);
}
  
    
    
    
/*
run:
    
"id", 2345
"name", "Tom"
"age", 54
    
*/

 

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Answer 2

const obj = {
   name: "Arthur",
   age: 98,
   id: 833712
}

const keys = Object.keys(obj)

for(let key of keys) {
    console.log(key, obj[key]);
}



   
/*
run:
   
"name", "Arthur"
"age", 98
"id", 833712
   
*/

 

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