vue/no-sparse-arrays

Disallow sparse arrays in template expressions.

Applies to: Vue SFC templates and blocks, with script context where the rule requires it.

Bad

The missing second element creates a sparse array.

<template>
  <p>{{ [1,, 3] }}</p>
</template>

Good

Every array position has an explicit value.

<template>
  <p>{{ [1, 2, 3] }}</p>
</template>

Configuration (Vite+)

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

export default defineConfig({}).withVue({
  linter: {
    "preset": "incremental",
    "rules": {
      "vue/no-sparse-arrays": "warn"
    }
  },
});

Then run vp run lint.

Related

• Vue rules
• All rules
• Source code