new vm.Script(code[, options])


    如果 options 是字符串,则指定文件名。

    • code <string> The JavaScript code to compile.
    • options <Object> | <string>
      • filename <string> Specifies the filename used in stack traces produced by this script. Default: 'evalmachine.<anonymous>'.
      • lineOffset <number> Specifies the line number offset that is displayed in stack traces produced by this script. Default: 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> 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> 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> Called during evaluation of this module when import() is called. If this option is not specified, calls to import() will reject with ERR_VM_DYNAMIC_IMPORT_CALLBACK_MISSING. This option is part of the experimental modules API. We do not recommend using it in a production environment.
        • specifier <string> specifier passed to import()
        • script <vm.Script>
        • importAssertions <Object> The "assert" value passed to the optionsExpression optional parameter, or an empty object if no value was provided.
        • Returns: <Module Namespace Object> | <vm.Module> Returning a vm.Module is recommended in order to take advantage of error tracking, and to avoid issues with namespaces that contain then function exports.

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

    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.