I encountered an error message while using VS Code:
[vue/no-deprecated-slot-attribute]
`slot` attributes are now considered deprecated. eslint-plugin-vue
https://i.sstatic.net/DUMLN.png
After installing two plugins in .eslintrc.js, I have the following configurations:
'extends': [
'plugin:vue/vue3-essential',
'eslint:recommended'
],
Additionally, my rules include:
'vue/no-deprecated-slot-attribute': 'off',
What steps should be taken to resolve this issue?
When we talk about slots in this context, we are actually referring to web component slots;
https://github.com/ionic-team/ionic-framework/issues/22236
It's important to note that the slots used in Ionic Framework differ from Vue 2 slots. The slots utilized by Ionic are Web Component slots, and they are a valid choice: https://developer.mozilla.org/en-US/docs/Web/Web_Components/Using_templates_and_slots.
According to our documentation, developers should be leveraging the Web Component slots for element positioning: https://ionicframework.com/docs/api/range#usage
To ensure everything runs smoothly, make sure your eslint.js includes the following rule:
rules: {
'vue/no-deprecated-slot-attribute': 'off',
}
Additionally, open .vscode/settings.json and include the following line:
"vetur.validation.template": false,
The warning highlighted in the vue/no-deprecated-slot-attribute pertains to the use of the slot attribute in Vue templates, which has been replaced with v-slot. However, Ionic Web components rely on the native slot property, making it safe to disregard this warning or turn it off:
// .eslintrc.js
module.exports = {
rules: {
'vue/no-deprecated-slot-attribute': 'off',
}
}
If you are using VS Code along with Vetur, consider disabling Vetur's template validation that may override settings in .eslintrc.js. The Vetur documentation suggests utilizing the ESLint Plugin for custom ESLint rules configuration:
To configure ESLint rules, follow these steps:
- Disable Vetur's template validation by setting
vetur.validation.template: false- Ensure you have installed the ESLint plugin. Errors will be displayed by the ESLint plugin rather than Vetur.
yarn add -D eslint eslint-plugin-vue- Define ESLint rules in
.eslintrc.
In relation to the error stating
'fixed' is defined but never used<script> section within the SFC contains an unused variable named fixed. Simply removing this variable should resolve the error.
One potential solution is to include the following code in your .vscode/settings.json file:
{
"vetur.validation.template": false
}
It seems like you're utilizing outdated syntax that is now flagged as deprecated. Consider adopting the newer named slots syntax.
As an alternative to
<ion-refresher slot="fixed">...</ion-refresher>
You should opt for
<ion-refresher>
<slot name="fixed">...</slot>
</ion-refresher>
When faced with ESLint errors, you have options. Simply use // eslint-disable-next-line or eslint-disable-line to bypass the error on the next line where the issue occurs and proceed with your code.
Alternatively,
You can utilize <template v-slot> for an unnamed slot tag, or
<template v-slot="name>For more information, check out this documentation: Link.
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