public static SObject IsFinite(ScriptProcessor processor, SObject instance, SObject This, SObject[] parameters)
{
if (parameters.Length == 0)
{
return(processor.Undefined);
}
var parameterAsNumber = parameters[0] as SNumber;
var dbl = parameterAsNumber?.Value ?? parameters[0].ToNumber(processor).Value;
return(processor.CreateBool(!(double.IsNaN(dbl) || double.IsInfinity(dbl))));
}
public static SObject ToPrimitive(ScriptProcessor processor, SObject instance, SObject This, SObject[] parameters)
{
if (parameters.Length == 0)
{
return(processor.Undefined);
}
if (parameters[0] is SString)
{
return(processor.CreateString(((SString)parameters[0]).Value));
}
if (parameters[0] is SNumber)
{
return(processor.CreateNumber(((SNumber)parameters[0]).Value));
}
if (parameters[0] is SBool)
{
return(processor.CreateBool(((SBool)parameters[0]).Value));
}
return(parameters[0]); // returns the input object, if no conversion was conducted.
}
public static SObject IsNaN(ScriptProcessor processor, SObject instance, SObject This, SObject[] parameters)
{
if (parameters.Length == 0)
{
return(processor.Undefined);
}
double dbl;
if (parameters[0] is SNumber)
{
dbl = ((SNumber)parameters[0]).Value;
}
else
{
dbl = parameters[0].ToNumber(processor).Value;
}
return(processor.CreateBool(double.IsNaN(dbl)));
}