Determines the JS data type of a JS value.


JS_TypeOfValue(JSContext *cx, JS::Handle<JS::Value> v);
Name Type Description
cx JSContext * The context in which to perform the type check. Requires request. In a JS_THREADSAFE build, the caller must be in a request on this JSContext.
v JS::Handle&lt;JS::Value&gt; The value to examine.


JS_TypeOfValue examines a specified JS value, v, and returns its JS data type. The return value is always one of JSTYPE_VOID, JSTYPE_OBJECT, JSTYPE_FUNCTION, JSTYPE_STRING, JSTYPE_NUMBER, or JSTYPE_BOOLEAN.

See Also