#no-unnecessary-array-splice-count

#Configuration

import { defineConfig, unicornPlugin } from '@rslint/core';

export default defineConfig([
  unicornPlugin.configs.recommended,
  {
    rules: {
      'unicorn/no-unnecessary-array-splice-count': 'error',
    },
  },
]);

#Rule Details

Remove a redundant .length, Infinity, or Number.POSITIVE_INFINITY count from a two-argument splice or toSpliced call.

Calls with additional insertion arguments are left unchanged. Receivers known not to be arrays are excluded; the receiver classification also accepts typed arrays, matching upstream.

Examples of incorrect code:

array.splice(1, array.length);

Examples of correct code:

array.splice(1);

#Options

This rule has no options. It is enabled at error severity in unicornPlugin.configs.recommended.

#Differences from upstream

Locally shadowed, disabled, or previously reassigned Infinity and Number globals are not assumed to be built-ins. For .length rewrites, known getter-backed receiver paths or a first argument that can change the receiver are skipped. In checker-less source-only runs, member-chain receivers are also left unchanged because the rule cannot prove that their properties are getter-free. These guards avoid semantics-changing autofixes that Unicorn v75.0.0 can still offer.

#Original Documentation

• eslint-plugin-unicorn: no-unnecessary-array-splice-count
• Source code