disallow the use of debugger (no-debugger)

禁用 debugger (no-debugger)

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。

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。

The debugger statement is used to tell the executing JavaScript environment to stop execution and start up a debugger at the current point in the code. This has fallen out of favor as a good practice with the advent of modern debugging and development tools. Production code should definitely not contain debugger, as it will cause the browser to stop executing code and open an appropriate debugger.

debugger 语句用于告诉 JavaScript 执行环境停止执行并在代码的当前位置启动调试器。随着现代调试和开发工具的出现，使用调试器已不是最佳实践。产品代码不应该包含 debugger，因为它会导致浏览器停止执行代码并打开一个适当的调试器。

Rule Details

This rule disallows debugger statements.

该规则禁止 debugger 语句。

Example of incorrect code for this rule:

错误 代码示例：

/*eslint no-debugger: "error"*/

function isTruthy(x) {
    debugger;
    return Boolean(x);
}

Example of correct code for this rule:

正确 代码示例：

/*eslint no-debugger: "error"*/

function isTruthy(x) {
    return Boolean(x); // set a breakpoint at this line
}

When Not To Use It

If your code is still very much in development and don’t want to worry about stripping debugger statements, then turn this rule off. You’ll generally want to turn it back on when testing code prior to deployment.

如果你的代码在很大程度上仍处于开发阶段，不想担心剥离 debugger 语句，那么就关闭此规则。通常在部署测试代码之前，你会想重新开启此规则。

Further Reading

Version

This rule was introduced in ESLint 0.0.2.

该规则在 ESLint 0.0.2 中被引入。

Resources