javascriptcore_sys

Function JSValueIsInstanceOfConstructor

Source 
pub unsafe extern "C" fn JSValueIsInstanceOfConstructor(
    ctx: JSContextRef,
    value: JSValueRef,
    constructor: JSObjectRef,
    exception: *mut JSValueRef,
) -> bool
Expand description

Tests whether a JavaScript value is an object constructed by a given constructor, as compared by the JS instanceof operator.

  • ctx: The execution context to use.
  • value: The JSValueRef to test.
  • constructor: The constructor to test against.
  • exception: A pointer to a JSValueRef in which to store an exception, if any. Pass NULL if you do not care to store an exception.

Returns true if value is an object constructed by constructor, as compared by the JS instanceof operator, otherwise false.