object VM extends Object with VM
Virtual Machine Singleton
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- @native() @JSImport("vm", JSImport.Namespace)
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- def createContext(): ScriptContext
- Definition Classes
- VM
- def createContext(sandbox: Object, options: CreateContextOptions = js.native): ScriptContext
If given a sandbox object, the vm.createContext() method will [prepare that sandbox][#vm_what_does_it_mean_to_contextify_an_object] so that it can be used in calls to vm.runInContext() or script.runInContext().
If given a sandbox object, the vm.createContext() method will [prepare that sandbox][#vm_what_does_it_mean_to_contextify_an_object] so that it can be used in calls to vm.runInContext() or script.runInContext(). Inside such scripts, the sandbox object will be the global object, retaining all of its existing properties but also having the built-in objects and functions any standard global object has. Outside of scripts run by the vm module, sandbox will remain unchanged.
If sandbox is omitted (or passed explicitly as undefined), a new, empty contextified sandbox object will be returned.
The vm.createContext() method is primarily useful for creating a single sandbox that can be used to run multiple scripts. For instance, if emulating a web browser, the method can be used to create a single sandbox representing a window's global object, then run all <script> tags together within the context of that sandbox.
- sandbox
the given sandbox
- Definition Classes
- VM
vm.createContext([sandbox])
- Since
0.11.7
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- def isContext(sandbox: Object): Boolean
Returns true if the given sandbox object has been contextified using vm.createContext().
Returns true if the given sandbox object has been contextified using vm.createContext().
- sandbox
the sandbox
- returns
true if the given sandbox object has been contextified using vm.createContext().
- Definition Classes
- VM
- final def isInstanceOf[T0]: Boolean
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- def runInContext(code: String, contextifiedSandbox: ScriptContext, options: VMRunInContextOptions = js.native): Any
Runs the compiled code contained by the vm.Script object within the given contextifiedSandbox and returns the result.
Runs the compiled code contained by the vm.Script object within the given contextifiedSandbox and returns the result. Running code does not have access to local scope.
- code
The JavaScript code to compile and run.
- contextifiedSandbox
A contextified object as returned by the vm.createContext() method.
- options
the optional options
- Definition Classes
- VM
script.runInContext(contextifiedSandbox[, options])
Example: - def runInNewContext(code: String, sandbox: Any, options: VMRunInNewContextOptions = js.native): Any
First contextifies the given sandbox, runs the compiled code contained by the vm.Script object within the created sandbox, and returns the result.
First contextifies the given sandbox, runs the compiled code contained by the vm.Script object within the created sandbox, and returns the result. Running code does not have access to local scope.
- code
The JavaScript code to compile and run.
- sandbox
An object that will be contextified. If undefined, a new object will be created.
- options
the optional options
- Definition Classes
- VM
vm.runInNewContext(code[, sandbox][, options])
Example: - def runInThisContext(code: String, options: VMRunInContextOptions = js.native): Script
Runs the compiled code contained by the vm.Script within the context of the current global object.
Runs the compiled code contained by the vm.Script within the context of the current global object. Running code does not have access to local scope, but does have access to the current global object.
- code
The JavaScript code to compile and run.
- options
the optional options
- Definition Classes
- VM
script.runInThisContext([options])
Example: - final def synchronized[T0](arg0: => T0): T0
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