new vm.Script(code[, options])

• code <string> 要编译的 JavaScript 代码。

  ¥code <string> The JavaScript code to compile.

• options <Object> | <string>

  • filename <string> 指定此脚本生成的堆栈跟踪中使用的文件名。默认值：'evalmachine.<anonymous>'。

    ¥filename <string> Specifies the filename used in stack traces produced by this script. Default: 'evalmachine.<anonymous>'.

  • lineOffset <number> 指定在此脚本生成的堆栈跟踪中显示的行号偏移量。默认值：0。

    ¥lineOffset <number> Specifies the line number offset that is displayed in stack traces produced by this script. Default: 0.

  • columnOffset <number> 指定在此脚本生成的堆栈跟踪中显示的第一行列号偏移量。默认值：0。

    ¥columnOffset <number> Specifies the first-line column number offset that is displayed in stack traces produced by this script. Default: 0.

  • cachedData <Buffer> | <TypedArray> | <DataView> 为所提供的源提供可选的 Buffer 或 TypedArray 或 DataView，其中包含 V8 的代码缓存数据。当提供时，cachedDataRejected 值将设置为 true 或 false，具体取决于 V8 对数据的接受程度。

    ¥cachedData <Buffer> | <TypedArray> | <DataView> Provides an optional Buffer or TypedArray, or DataView with V8's code cache data for the supplied source. When supplied, the cachedDataRejected value will be set to either true or false depending on acceptance of the data by V8.

  • produceCachedData <boolean> 当 true 且没有 cachedData 存在时，则 V8 将尝试为 code 生成代码缓存数据。当成功后，会生成带有 V8 代码缓存数据的 Buffer 并存储在返回的 vm.Script 实例的 cachedData 属性中。cachedDataProduced 值将设置为 true 或 false，这取决于代码缓存数据是否成功生成。此选项已弃用，取而代之的是 script.createCachedData()。默认值：false。

    ¥produceCachedData <boolean> When true and no cachedData is present, V8 will attempt to produce code cache data for code. Upon success, a Buffer with V8's code cache data will be produced and stored in the cachedData property of the returned vm.Script instance. The cachedDataProduced value will be set to either true or false depending on whether code cache data is produced successfully. This option is deprecated in favor of script.createCachedData(). Default: false.

  • importModuleDynamically <Function> | <vm.constants.USE_MAIN_CONTEXT_DEFAULT_LOADER> 用于指定在调用 import() 时评估此脚本期间应如何加载模块。此选项是实验模块 API 的一部分。不建议在生产环境中使用它。详细信息参见 编译 API 中支持动态 import()。

    ¥importModuleDynamically <Function> | <vm.constants.USE_MAIN_CONTEXT_DEFAULT_LOADER> Used to specify how the modules should be loaded during the evaluation of this script when import() is called. This option is part of the experimental modules API. We do not recommend using it in a production environment. For detailed information, see Support of dynamic import() in compilation APIs.

如果 options 是字符串，则指定文件名。

¥If options is a string, then it specifies the filename.

创建新的 vm.Script 对象编译 code 但不运行它。编译后的 vm.Script 可以多次运行。code 没有绑定到任何全局对象；相反，它在每次运行之前绑定，仅针对该运行。

¥Creating a new vm.Script object compiles code but does not run it. The compiled vm.Script can be run later multiple times. The code is not bound to any global object; rather, it is bound before each run, just for that run.