In JavaScript, how can you determine if the childId corresponds to the parentId?

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To determine if the childId corresponds to the parentId, you can compare the two values using a simple if statement:

if(childId === parentId) {
  // The childId corresponds to the parentId
} else {
  // The childId does not correspond to the parentId
}

Alternatively, if you have the parent object and you want to check if the child object belongs to it, you can use the hasOwnProperty() method:

if(parent.hasOwnProperty(childId)) {
  // The child object belongs to the parent object
} else {
  // The child object does not belong to the parent object
}