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On . By CodimTh

In Vue.js You can specify the type of a prop by using an object instead of an array, using the name of the property as the key of each property, and the type as the value:

Vue.component('user-name', {
  props: {
    firstName: String,
    lastName: String
  template: '<p>Hi {{ firstName }} {{ lastName }}</p>'


The valid types you can use are:

  • String
  • Number
  • Boolean
  • Array
  • Object
  • Date
  • Function
  • Symbol

When a type mismatches, Vue alerts (in development mode) in the console with a warning.

Prop types can be more articulated.

You can allow multiple different value types:

props: {

  firstName: [String, Number]



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