TextEncoder: Subarrays suck

	A	B	C	D	E	F
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2	Case	Subarrays	Substrings	Chrome	Firefox	Safari

3	TextEncoder	on-the-fly	substring	797	1,842	2,414
4	TextEncoder	premade	substring	1,095	2,753	3,112
5	custom encodeInto	on-the-fly	substring	6,470	2,592	5,258
6	custom encodeInto	premade	substring	9,699	5,842	9,214
7	custom encodeInto	write-offset	substring	9,921	6,173	8,993
8	custom encodeInto	on-the-fly	read-offset	7,418	3,867	7,519
9	custom encodeInto	premade	read-offset	8,448	9,891	16,655
10	custom encodeInto	write-offset	read-offset	8,568	9,981	16,729
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13	TextEncoder	on-the-fly	substring	1.00x	1.00x	1.00x
14	TextEncoder	premade	substring	1.37x	1.49x	1.29x
15	custom encodeInto	on-the-fly	substring	1.00x	1.00x	1.00x
16	custom encodeInto	premade	substring	1.50x	2.25x	1.75x
17	custom encodeInto	write-offset	substring	1.53x	2.38x	1.71x
18	custom encodeInto	on-the-fly	read-offset	1.00x	1.00x	1.00x
19	custom encodeInto	premade	read-offset	1.14x	2.56x	2.22x
20	custom encodeInto	write-offset	read-offset	1.16x	2.58x	2.22x
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