Пример #1
0
        public static EcmaValue Fill([This] EcmaValue thisValue, EcmaValue value, EcmaValue start, EcmaValue end)
        {
            TypedArray array = thisValue.GetUnderlyingObject <TypedArray>();

            Guard.BufferNotDetached(array);
            value = value.ToNumber();
            int len   = array.Length;
            int from  = ArrayHelper.GetBoundIndex(start, len, 0);
            int until = ArrayHelper.GetBoundIndex(end, len, len);

            Guard.BufferNotDetached(array);
            for (int i = from; i < until; i++)
            {
                array.SetOrThrow(i, value);
            }
            return(thisValue);
        }
Пример #2
0
        public static EcmaValue Filter([This] EcmaValue thisValue, EcmaValue callback, EcmaValue thisArg)
        {
            TypedArray array = thisValue.GetUnderlyingObject <TypedArray>();

            Guard.BufferNotDetached(array);
            Guard.ArgumentIsCallable(callback);
            List <EcmaValue> filtered = new List <EcmaValue>();

            for (int i = 0, length = array.Length; i < length; i++)
            {
                EcmaValue value = array.GetValueFromBuffer(i);
                if (callback.Call(thisArg, value, i, thisValue))
                {
                    filtered.Add(value);
                }
            }
            TypedArray target = TypedArray.SpeciesCreate(array, filtered.Count);

            for (int i = 0; i < filtered.Count; i++)
            {
                target.SetOrThrow(i, filtered[i]);
            }
            return(target);
        }