The function cannot be invoked. The 'Boolean' type does not have any call signatures. An error has occurred in the computed property of Vue3

Currently, I am working on creating a computed property that checks if an item is in the array. The function I have created returns a boolean value and takes one parameter, which is the item to be checked.

isSelected: function (item: MediaGalleryItemTypes) {
  return this.selectedItems.some(e => e._id === item._id)
}

When using the variable in the template section to pass it to another component, here is how I implement it:

 DocumentCard(:is-selected="isSelected(document)")

Unfortunately, the code throws an error stating:

chunk-common.js:5918 Uncaught (in promise) TypeError: _ctx.isSelected is not a function

and in VSCode, the error message is:

This expression is not callable. Type 'Boolean' has no call signatures.

Any suggestions on how to resolve this issue and create a computed property with a parameter?

Answer №1

Computed properties in Vue.Js do not support passing parameters directly, unless the computed property returns a function. The alternative is to utilize the standard method

Exploring the possibility of passing parameters in computed properties within Vue.Js

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