Even though we have already mentioned a difference between v-if and v-show, we can deepen a bit more. Some questions may arise out of their use. Is there a big difference between using v-show and v-if? Is there a situation where performance is affected? Are there problems where you're better off using one or the other? You might experience that the use of v-show on a lot of situations causes bigger time of load during page rendering. In comparison, v-if is truly conditional according to the guide of Vue.js.
When using
v-if
, if the condition is false on initial render, it will not do anything-partial compilation won't start until the condition becomes true for the first time. Generally speaking,
v-if
has higher toggle costs while
v-show
has higher initial render costs. So prefer
v-show
if you need to toggle something very often, and prefer
v-if if the condition is unlikely to change at runtime.
So, when to use which really depends on your needs.