In JavaScript, What Is The Method For Iterating Through An Ordinary Object With Its Properties As Members?

If the JavaScript object contains other objects as its members, you can loop through the object using a for…in loop. Here is an example:

const myObject = {
  key1: 'value1',
  key2: {
    subKey1: 'subValue1',
    subKey2: 'subValue2'
  },
  key3: 'value3'
};

for (let key in myObject) {
  // Check if the member is an object
  if (typeof myObject[key] === 'object' && myObject[key] !== null) {
    // Loop through the sub-object
    for (let subKey in myObject[key]) {
      console.log(`myObject[${key}][${subKey}] = ${myObject[key][subKey]}`);
    }
  } else {
    console.log(`myObject[${key}] = ${myObject[key]}`);
  }
}

In this example, the outer loop iterates over each member of the object. Inside the loop, it checks if the member is an object using typeof myObject[key] === 'object' && myObject[key] !== null. If it is an object, it then loops through the sub-object using another for…in loop. Otherwise, it simply prints the value.

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