vue conditional prop

***> wrote: Learn how to build a pagination table with search and sorting with VueJS. Note, is designed for the case where it has one direct child component that is being toggled. I think computed is not an ideal solution because it introduces the need of making up a new name that makes the code harder to reason about (conceptually the name of the prop externally and the name of the computed property internally are identical). The type can be one of the following native constructors: In addition, type can also be a custom constructor function and the assertion will be made with an instanceof check. Vue.js Component Props Props are used to pass down state to child components. At this point we have a nicely-working ToDoItem component that can be passed a label to display, will store its checked state, and will be rendered with a unique id each time it is called. }", // Basic type check (`null` and `undefined` values will pass any type validation), // Object or array defaults must be returned from, // The value must match one of these strings, ` Even computed may work for the default values but I have the same issue In fact, you could watch nonstop for … This page assumes you’ve already read the Components Basics. 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. to your account. If you do, Vue will warn you in the console. The most concise screencasts for the working developer, updated daily. My goal was to pass a prop that would turn a field into a required field. You would have to do that in a lifecycle hook in pretty sure. The above syntax means the presence of the active class will be determined by the truthiness (opens new window) of the data property isActive.. You can have multiple classes toggled by having more fields in the object. What I needed was to validate a prop based on some other props. -->, , "{ -->, , , , , , , , , ,