ESLintdisallow multiple empty lines (no-multiple-empty-lines)
不允许多个空行 (no-multiple-empty-lines)
The --fix option on the command line can automatically fix some of the problems reported by this rule.
命令行中的 --fix 选项可以自动修复一些该规则报告的问题。
Some developers prefer to have multiple blank lines removed, while others feel that it helps improve readability. Whitespace is useful for separating logical sections of code, but excess whitespace takes up more of the screen.
一些开发者喜欢删除多个空行，然而其他人认为多个空行可以提高可读性。空白对于分离代码代码段逻辑是有帮助的，但过量的空白会占用更多的屏幕。
Rule Details
This rule aims to reduce the scrolling required when reading through your code. It will warn when the maximum amount of empty lines has been exceeded.
该规则目的在于，当你读代码时，减少滚动。当超过最大空行数，该规则将发出警告。
Options
This rule has an object option:
该规则有一个对象选项：
"max"(default:2) enforces a maximum number of consecutive empty lines."max"(默认为2) 强制最大连续空行数。"maxEOF"enforces a maximum number of consecutive empty lines at the end of files."maxEOF"强制文件末尾的最大连续空行数。"maxBOF"enforces a maximum number of consecutive empty lines at the beginning of files."maxBOF"强制文件开始的最大连续空行数。
max
Examples of incorrect code for this rule with the default { "max": 2 } option:
默认选项 { "max": 2 } 的 错误 代码示例：
/*eslint no-multiple-empty-lines: "error"*/
var foo = 5;
var bar = 3;
Examples of correct code for this rule with the default { "max": 2 } option:
默认选项 { "max": 2 } 的 正确 代码示例：
/*eslint no-multiple-empty-lines: "error"*/
var foo = 5;
var bar = 3;
maxEOF
Examples of incorrect code for this rule with the { max: 2, maxEOF: 1 } options:
选项 { max: 2, maxEOF: 1 } 的 错误 代码示例：
/*eslint no-multiple-empty-lines: ["error", { "max": 2, "maxEOF": 1 }]*/
var foo = 5;
var bar = 3;
Examples of correct code for this rule with the { max: 2, maxEOF: 1 } options:
选项 { max: 2, maxEOF: 1 } 的 正确 代码示例：
/*eslint no-multiple-empty-lines: ["error", { "max": 2, "maxEOF": 1 }]*/
var foo = 5;
var bar = 3;
maxBOF
Examples of incorrect code for this rule with the { max: 2, maxBOF: 1 } options:
选项 { max: 2, maxBOF: 1 } 的 错误 代码示例：
/*eslint no-multiple-empty-lines: ["error", { "max": 2, "maxBOF": 1 }]*/
var foo = 5;
var bar = 3;
Examples of correct code for this rule with the { max: 2, maxBOF: 1 } options:
选项 { max: 2, maxBOF: 1 } 的 正确 代码示例：
/*eslint no-multiple-empty-lines: ["error", { "max": 2, "maxBOF": 1}]*/
var foo = 5;
var bar = 3;
When Not To Use It
If you do not care about extra blank lines, turn this off.
如果你不关心额外的空行，关闭此规则即可。
Version
This rule was introduced in ESLint 0.9.0.
该规则在 ESLint 0.9.0 中被引入。