Below are some of the main differences between between v-show and v-if directives,
v-if only renders the element to the DOM if the expression passes whereas v-show renders all elements to the DOM and then uses the CSS display property to show/hide elements based on expression.
v-if supports v-else and v-else-if directives whereas v-show doesn't support else directives.
v-if has higher toggle costs while v-show has higher initial render costs. i.e, v-show has a performance advantage if the elements are switched on and off frequently, while the v-if has the advantage when it comes to initial render time.
v-if supports <template> tab but v-show doesn't support.