Diffusion Ant (slabs) Code

ant/examples/spec/textcodec.js
327d21970a03slabs

textcodec.js
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			import { test, summary } from './helpers.js';

			console.log('TextEncoder/TextDecoder Tests\n');

			const encoder = new TextEncoder();
			const decoder = new TextDecoder();

			const encoded = encoder.encode('hello');
			test('TextEncoder type', encoded instanceof Uint8Array, true);
			test('TextEncoder length', encoded.length, 5);
			test('TextEncoder byte 0', encoded[0], 104);
			test('TextEncoder byte 1', encoded[1], 101);

			const decoded = decoder.decode(encoded);
			test('TextDecoder', decoded, 'hello');

			const utf8 = encoder.encode('日本語');
			test('UTF-8 encode length', utf8.length, 9);
			const utf8Decoded = decoder.decode(utf8);
			test('UTF-8 decode', utf8Decoded, '日本語');

			const emoji = encoder.encode('😀');
			test('emoji encode length', emoji.length, 4);
			test('emoji decode', decoder.decode(emoji), '😀');

			const empty = encoder.encode('');
			test('empty encode length', empty.length, 0);
			test('empty decode', decoder.decode(empty), '');

			const roundtrip = 'Hello, 世界! 🎉';
			const rt = decoder.decode(encoder.encode(roundtrip));
			test('roundtrip', rt, roundtrip);

			summary();

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