The introduction

Vue component data (vUE component data)

data() {
    return{}}Copy the code

But why is it a function that returns an object? Why not?

data : {
    
}
Copy the code

conclusion

  1. In VUE, data can be written as an object, but this is to ensure that the component is not reused
  2. Because of the reuse of marshals, multiple vUE instances are actually created. If data is still a single object, then all created instances keep references to the same object.
  3. So we return a new, brand new data object through a function execution.