Rule proposal: `prefer-change-array-by-copy` · sindresorhus/eslint-plugin-unicorn#1514

2021-09-08T02:26:34.000Z

["Change Array by copy" proposal](https://github.com/tc39/proposal-change-array-by-copy#change-array-by-copy) ## Fail ```js array.reverse(); ``` ```js array.sort(); ``` ```js const array = [...foo]; array.splice(0, 1); ``` ```js const array = [...foo]; array[1] = 'changed'; ``` ## Pass ```js array = array.toReversed(); ``` ```js array = array.toSorted(); ``` ```js const array = foo.toSpliced(0, 1); ``` ```js const array = foo.with(1, 'changed'); ```

(14 留言) (14 反應) (0 負責人)JavaScript (5,022 star) (468 fork)user submission

help wantednew rule

描述

"Change Array by copy" proposal

Fail

array.reverse();

array.sort();

const array = [...foo];
array.splice(0, 1);

const array = [...foo];
array[1] = 'changed';

Pass

array = array.toReversed();

array = array.toSorted();

const array = foo.toSpliced(0, 1);

const array = foo.with(1, 'changed');

貢獻者指南

技術棧: javascriptnodejs
領域: toolingdeveloper experience
議題類型: feature
難度: 3
預計時間: 3-5 days
活動狀態: stale
清晰度: clear
前置要求: ESLint rule developmentAST traversalJavaScript array methods
新手友善度: 40
研究方向: Study existing rules in the eslint plugin unicorn repository, especially those that detect mutable array methods like 'prefer array flat map' or 'no array method this argument'. Examine the AST selectors for calls to reverse(), sort(), splice(), and direct array index assignment. Check the issue comments for any consensus on the rule's scope and whether it should also handle cases like `array[1] = 'changed'`.