Function javascriptcore_sys::JSValueToNumber

pub unsafe extern "C" fn JSValueToNumber(
    ctx: JSContextRef, 
    value: JSValueRef, 
    exception: *mut JSValueRef
) -> f64

Converts a JavaScript value to number and returns the resulting number.

• ctx: The execution context to use.
• value: The JSValue to convert.
• 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 the numeric result of conversion, or NaN if an exception is thrown.