. v-for iterates through the collection and renders copies of multiple elements, the syntax is
."/> . v-for iterates through the collection and renders copies of multiple elements, the syntax is .">Home > Article > Web Front-end > The difference between v-if and v-for in vue
v-if and v-for have different functions in Vue.js: v-if renders elements based on conditions, and the syntax is <div v-if="condition"></div>. v-for iterates through a collection and renders copies of multiple elements, with the syntax <div v-for="item in array"></div>.
The difference between v-if and v-for in Vue.js
Definition
v-if and v-for are both useful instructions in Vue.js for controlling the rendering and dynamics of elements.
v-if
<div v-if="condition"></div>
v-for
<div v-for="item in array"></div>
Key differences
Features | v-if | v- for |
---|---|---|
Purpose | Render elements based on conditions | Traverse the collection and render multiple elements |
Result | Single element | Multiple elements (one for each item in the collection) |
Syntax | <div v-if="condition"></div> |
## div>
|
Render only if the condition is true | Iterate through each element of the collection and render | |
Conditions or variables | Traversed collections or objects |
Usage scenarios
v-if: Used to switch the visibility of elements based on the true or false of the data, for example:
v-for: Used to create dynamic lists, grids, or other renderable displays of collection-based data, such as:
Select
Choose which directive to use based on the needs of your application. If you need to show or hide an element conditionally, use v-if. If you need to iterate over a collection and render multiple elements, use v-for.The above is the detailed content of The difference between v-if and v-for in vue. For more information, please follow other related articles on the PHP Chinese website!