implicit-arrow-linebreak
强制箭头函数体的位置
此规则报告的一些问题可通过 --fix 命令行选项自动修复
此规则在 ESLint v8.53.0 中已弃用。请在 @stylistic/eslint-plugin-js 中使用 相应的规则。
¥This rule was deprecated in ESLint v8.53.0. Please use the corresponding rule in @stylistic/eslint-plugin-js.
箭头函数体可以包含作为表达式而不是块体的隐式返回。为隐式返回的表达式强制执行一致的位置可能很有用。
¥An arrow function body can contain an implicit return as an expression instead of a block body. It can be useful to enforce a consistent location for the implicitly returned expression.
规则详情
¥Rule Details
此规则旨在为包含隐式返回的箭头函数强制执行一致的位置。
¥This rule aims to enforce a consistent location for an arrow function containing an implicit return.
选项
¥Options
此规则接受字符串选项：
¥This rule accepts a string option:
-
"beside"（默认）不允许在箭头函数体之前有换行符。¥
"beside"(default) disallows a newline before an arrow function body. -
"below"需要在箭头函数体之前有一个换行符。¥
"below"requires a newline before an arrow function body.
使用默认 "beside" 选项的此规则的错误代码示例：
¥Examples of incorrect code for this rule with the default "beside" option:
/* eslint implicit-arrow-linebreak: ["error", "beside"] */
(foo) =>
bar;
(foo) =>
(bar);
(foo) =>
bar =>
baz;
(foo) =>
(
bar()
);
使用默认 "beside" 选项的此规则的正确代码示例：
¥Examples of correct code for this rule with the default "beside" option:
/* eslint implicit-arrow-linebreak: ["error", "beside"] */
(foo) => bar;
(foo) => (bar);
(foo) => bar => baz;
(foo) => (
bar()
);
// functions with block bodies allowed with this rule using any style
// to enforce a consistent location for this case, see the rule: `brace-style`
(foo) => {
return bar();
}
(foo) =>
{
return bar();
}
使用 "below" 选项的此规则的错误代码示例：
¥Examples of incorrect code for this rule with the "below" option:
/* eslint implicit-arrow-linebreak: ["error", "below"] */
(foo) => bar;
(foo) => (bar);
(foo) => bar => baz;
使用 "below" 选项的此规则的正确代码示例：
¥Examples of correct code for this rule with the "below" option:
/* eslint implicit-arrow-linebreak: ["error", "below"] */
(foo) =>
bar;
(foo) =>
(bar);
(foo) =>
bar =>
baz;
何时不使用
¥When Not To Use It
如果你不关心隐式返回的箭头函数表达式的位置一致，则不应打开此规则。
¥If you’re not concerned about consistent locations of implicitly returned arrow function expressions, you should not turn on this rule.
如果你对 arrow-body-style 使用 "always" 选项，你也可以禁用此规则，因为这将禁用在箭头函数中使用隐式返回。
¥You can also disable this rule if you are using the "always" option for the arrow-body-style, since this will disable the use of implicit returns in arrow functions.
相关规则
版本
此规则是在 ESLint v4.12.0 中引入。