[Vuejs]-V-model in Vue Instance

v-model is a two way data binding, which means that the data will change according to the data in the input html tag, and also if you change the data itself – the value you see in the input itself will change as well.

so if you do not use v-model on an input html tag, the data will not change according to it. And best way to access the value of the input is by using v-model