script/no-deprecated-delete-set

Disallow Vue 2 $set and $delete, which were removed in Vue 3

Bad · Good

Default severity: error
Presets: essential, happy-path, ecosystem, nuxt, opinionated
Automatic fix: None; review the suggested change
Applies to: JS/TS scripts in Vue SFCs; examples show the relevant Options API or script setup form
Options: No rule-specific options. Severity and preset selection are configurable.

Configuration (Vite+)

import { defineConfig } from "@vizejs/vite-plugin/vite-plus";

export default defineConfig({
  vue: {
    linter: {
      "preset": "incremental",
      "rules": {
        "script/no-deprecated-delete-set": "error"
      }
    },
  },
});

vp run lint

Bad

created() calls the removed this.$set helper to add ready.

<script lang="ts">
export default {
  created() {
    this.$set(this.item, 'ready', true)
  }
}
</script>

Good

The same field is assigned directly with this.item.ready = true.

<script lang="ts">
export default {
  created() {
    this.item.ready = true
  }
}
</script>

Good avoids this rule's finding under the configuration above; other rules may still report diagnostics.

Implementation · All rules