Diffusion Ant (feature/nursery) Code

ant/examples/spec/set.js
ddfe6237cab5feature/nursery

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

			console.log('Set Tests\n');

			const set = new Set();

			set.add('value1');
			set.add('value2');
			set.add(42);
			set.add(true);

			test('set size after add', set.size(), 4);
			test('set has string', set.has('value1'), true);
			test('set has number', set.has(42), true);
			test('set has boolean', set.has(true), true);
			test('set has missing', set.has('missing'), false);

			test('set delete returns true', set.delete('value2'), true);
			test('set has after delete', set.has('value2'), false);
			test('set size after delete', set.size(), 3);

			set.add('value1');
			test('set size after duplicate', set.size(), 3);

			set.add(123);
			set.add(null);

			test('set has 123', set.has(123), true);
			test('set has null', set.has(null), true);
			test('set size after more adds', set.size(), 5);

			set.clear();
			test('set size after clear', set.size(), 0);
			test('set has after clear', set.has('value1'), false);

			set.add('a').add('b').add('c');
			test('set chaining size', set.size(), 3);
			test('set chaining has a', set.has('a'), true);
			test('set chaining has b', set.has('b'), true);
			test('set chaining has c', set.has('c'), true);

			test('set delete nonexistent', set.delete('nonexistent'), false);

			summary();

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