ESLint v9.25.1 发布

亮点

🌐 Highlights

在 ESLint v9.25.0 中，作为在 no-unused-expressions 规则中添加对 TypeScript 语法支持的一部分，我们对该规则检测指令（例如 "use strict"）的方式进行了更改。此更改揭示了该规则存在的假阴性：在使用 ecmaVersion: 3 进行检查时，本应由该规则报告的在 ES5+ 中属于指令的语句，因为 ES3 环境不支持指令，因此它们实际上未被使用。

🌐 In ESLint v9.25.0, as part of adding support for TypeScript syntax in the no-unused-expressions rule, we introduced a change in how this rule detects directives (for example, "use strict"). This change revealed false negatives this rule had: when linting with ecmaVersion: 3, statements that are directives in ES5+ should be reported by this rule, because ES3 environments do not support directives, so they are effectively unused.

虽然 v9.25.0 版本中该规则的行为是正确的，但事实证明此更改会影响那些以 ES3 和 ES5+ 环境指令发布相同代码的项目（问题 #19637）。为了支持此使用场景，v9.25.1 中 no-unused-expressions 规则检测指令的方式已被恢复。该更改将在 v9.26.0 中重新引入，并且 no-unused-expressions 规则的默认行为将与 v9.25.0 相同，但该规则将有一个选项，即使在 ecmaVersion: 3 的情况下也可以忽略指令。

🌐 While the v9.25.0 behavior of this rule is correct, it turned out that this change impacts projects that publish the same code with directives for both ES3 and ES5+ environments (issue #19637). In order to support this use case, the way the no-unused-expressions rule detects directives has been reverted in v9.25.1. The change will be reintroduced in v9.26.0, and the default behavior of the no-unused-expressions rule will be the same as in v9.25.0, but the rule will have an option to ignore directives even with ecmaVersion: 3.

错误修复

🌐 Bug Fixes

• cdc8e8c 修复：在 no-unused-expressions 中恢复指令检测 (#19639) (sethamus)

杂项

🌐 Chores

• 1f2b057 杂务：升级 @eslint/js@9.25.1 (#19642) (Milos Djermanovic)
• 771317f 事务：更新 package.json 以适配 @eslint/js 版本发布（Jenkins）