JSBool JS_DoubleToValue()

Description Stores a floating-point number return value in a jsval.

Arguments JSContext *cx, double dv, jsval *vp

	`cx` is the opaque `JSContext` pointer that was passed to the JavaScript function.
	`dv` is an 8-byte floating-point number.
	`vp`is a pointer to the `jsval` into which the contents of the double should be copied.

Returns A Boolean value indicating success (JS_TRUE) or failure (JS_FALSE).