else if in vue code example
Example 1: v-if vs v-show
v-if vs v-show
v-if is “real” conditional rendering because it ensures that
event listeners and child components inside the conditional
block are properly destroyed and re-created during toggles.
v-if is also lazy: if the condition is false on initial render,
it will not do anything - the conditional block won’t be rendered
until the condition becomes true for the first time.
In comparison, v-show is much simpler - the element is always
rendered regardless of initial condition, with CSS-based toggling.
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.
Example 2: v-if vuejs
Vue is awesome !
Vue is not very nice !
Vue is baaaad !
Example 3: vue v-if
Now you see me
Now you don't