disallow mixed spaces and tabs for indentation (no-mixed-spaces-and-tabs)

禁止使用 空格 和 tab 混合缩进 (no-mixed-spaces-and-tabs)

The "extends": "eslint:recommended" property in a configuration file enables this rule.

配置文件中的 "extends": "eslint:recommended" 属性启用了此规则。

Most code conventions require either tabs or spaces be used for indentation. As such, it’s usually an error if a single line of code is indented with both tabs and spaces.

大多数代码约定要求使用空格或 tab 进行缩进。因此，一行代码同时混有 tab 缩进和空格缩进，通常是错误的。

Rule Details

This rule disallows mixed spaces and tabs for indentation.

该规则禁止使用 空格 和 tab 混合缩进。

Examples of incorrect code for this rule:

错误 代码示例：

/*eslint no-mixed-spaces-and-tabs: "error"*/

function add(x, y) {
// --->..return x + y;

      return x + y;
}

function main() {
// --->var x = 5,
// --->....y = 7;

    var x = 5,
        y = 7;
}

Examples of correct code for this rule:

正确 代码示例：

/*eslint no-mixed-spaces-and-tabs: "error"*/

function add(x, y) {
// --->return x + y;
    return x + y;
}

Options

This rule has a string option.

该规则有一个字符串选项。

smart-tabs

Examples of correct code for this rule with the "smart-tabs" option:

选项 "smart-tabs" 的 正确 代码示例：

/*eslint no-mixed-spaces-and-tabs: ["error", "smart-tabs"]*/

function main() {
// --->var x = 5,
// --->....y = 7;

    var x = 5,
        y = 7;
}

Further Reading

Version

This rule was introduced in ESLint 0.7.1.

该规则在 ESLint 0.7.1 中被引入。

Resources