Check out example codes for "vuejs push data update parent". It will help you in understanding the concepts better.

Code Example 1

 From the child component, you want to do an "emit". This tells the
 parent to run a function which is specified in the child component
 reference. Using Pseudo code here:
    methods: {
      updateParentData() {
    	Vue.$emit('updateParentData', childData);
  methods: {
    updateData(childData) {
      // Do some stuff with child data

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