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    JS NewFunction

    Create a new JavaScript function that is implemented in C/C++ as a JSNative.


    JSFunction * JS_NewFunction(JSContext *cx, JSNative call,
       uintN nargs, uintN flags, JSObject *parent,
       const char *name);
    Name Type Description
    cx JSContext * The context in which to create the new function. Requires request. In a JS_THREADSAFE build, the caller must be in a request on this JSContext.
    call JSNative Native C/C++ implementation of this function.
    nargs uintN Number of arguments the function expects.
    flags uintN Reserved. Always pass 0 for this argument.
    parent JSObject * Pointer to the parent object for this function. If this is NULL, a default parent object is used.
    name const char * Name to assign to the new function. If this is NULL, the new function has no name.


    JS_NewFunction creates a new JavaScript function implemented in C/C++. (To create a new function implemented in JavaScript, use JS_CompileFunction instead.)

    call is a C/C++ function pointer that the new function wraps. nargs is the number of arguments the function expects. flags must be 0. parent may be used to specify the new function's parent; NULL is usually the right thing here. name is the name to assign to the function. If name is NULL, the new function has no name. (JS_GetFunctionId, passed the new function, will return NULL.)

    On success, JS_NewFunction returns a pointer to the newly created function. Otherwise it reports an out-of-memory error and returns NULL.

    See Also

    MXR ID Search for JS_NewFunction

    JS_CallFunction, JS_CallFunctionName, JS_CallFunctionValue, JS_CompileFunction, JS_CompileUCFunction, JS_DefineFunction, JS_DefineFunctions, JS_GetFunctionName, JS_GetFunctionObject

    Document Tags and Contributors

    Contributors to this page: Jorend
    Last updated by: Jorend,