[Vue.js 3.0] Migration – v-if vs. v-for Precedence
嘿哈 • • Vue3 Course • 998 阅读
# v-if vs. v-for Precedence
BREAKING: If used on the same element,
v-ifwill have higher precedence than
Two of the most commonly used directives in Vue.js are
v-for. So it's no surprise that there comes a time when developers want to use both together. While this is not a recommended practice, there may be times when this is necessary, so we wanted to provide guidance for how it works.
# 2.x Syntax
In 2.x, when using
v-for on the same element,
v-for would take precedence.
# 3.x Syntax
v-if will always have the higher precedence than
# Migration Strategy
It is recommended to avoid using both on the same element due to the syntax ambiguity.
Rather than managing this at the template level, one method for accomplishing this is to create a computed property that filters out a list for the visible elements.
# See also
- List Rendering - Displaying Filtered/Sorted Results
- List Rendering -