![]() / Determines if a script engine with the input name exists. Private const int E_NOTIMPL = -2147467263 Private const int TYPE_E_ELEMENTNOTFOUND = unchecked((int)(0x8002802B)) Int ParseScriptText(string code, string itemName, IntPtr context, string delimiter, long sourceContextCookie, uint startingLineNumber, ScriptText flags, out object result, out .EXCEPINFO exceptionInfo) Int ParseScriptText(string code, string itemName, IntPtr context, string delimiter, int sourceContextCookie, uint startingLineNumber, ScriptText flags, out object result, out .EXCEPINFO exceptionInfo) Int AddScriptlet(string defaultName, string code, string itemName, string subItemName, string eventName, string delimiter, IntPtr sourceContextCookie, uint startingLineNumber, ScriptText flags, out string name, out .EXCEPINFO exceptionInfo) Int GetSourceLineText(out string sourceLine) Int GetSourcePosition(out uint sourceContext, out int lineNumber, out int characterPosition) Int GetExceptionInfo(out .EXCEPINFO exceptionInfo) Int OnScriptError(IActiveScriptError scriptError) Int OnStateChange(ScriptState scriptState) Int OnScriptTerminate(object result, .EXCEPINFO exceptionInfo) Int GetDocVersionString(out string version) Int GetItemInfo(string name, ScriptInfo returnMask, out IntPtr item, IntPtr typeInfo) Int SetProperty(int dwProperty, IntPtr pvarIndex, ref object pvarValue) Int GetProperty(int dwProperty, IntPtr pvarIndex, out object pvarValue) Int InterruptScriptThread(uint thread, out .EXCEPINFO exceptionInfo, uint flags) Int GetScriptThreadState(uint thread, out ScriptThreadState state) Int GetScriptThreadID(uint win32ThreadId, out uint thread) Int GetCurrentScriptThreadID(out uint thread) Int GetScriptDispatch(string itemName, out IntPtr dispatch) Int AddTypeLib(Guid typeLib, uint major, uint minor, uint flags) Int AddNamedItem(string name, ScriptItem flags) Int GetScriptState(out ScriptState scriptState) Int GetScriptSite(Guid riid, out IntPtr site) Int SetScriptSite(IActiveScriptSite pass) ParsedScript parsed = engine.Parse("function MyFunc(x)" Here are some sample of what you can do with it:ġ) Direct expressions evaluation: Console.WriteLine(ScriptEngine.Eval("jscript", "1+2/3")) Ģ) Function call, with optional arguments: using (ScriptEngine engine = new ScriptEngine("jscript")) ![]() that's exactly what Internet Explorer does). (using the 'named items' feature, with the MyItem class. JS code, you may have to emulate/implement some HTML DOM element such as 'document', 'window', etc. In your specific case, it means depending on the. It supports 32-bit and 64-bit environments. To answer the question title "How to parse and execute JS in C#", here is piece of code that wraps the Windows Script Engines.
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