Diffusion Ant (slabs) Code

ant/tests/test_new_arr.js
327d21970a03slabs

test_new_arr.js
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			// ============ Array.prototype.some ============
			console.log('=== some ===');
			console.log([1, 2, 3].some(x => x > 2) === true);
			console.log([1, 2, 3].some(x => x > 5) === false);
			console.log([].some(x => true) === false);

			// ============ Array.prototype.every ============
			console.log('=== every ===');
			console.log([1, 2, 3].every(x => x > 0) === true);
			console.log([1, 2, 3].every(x => x > 2) === false);
			console.log([].every(x => false) === true);

			// ============ Array.prototype.forEach ============
			console.log('=== forEach ===');
			let sum = 0;
			[1, 2, 3].forEach(x => (sum += x));
			console.log(sum === 6);

			// ============ Array.prototype.map ============
			console.log('=== map ===');
			let mapped = [1, 2, 3].map(x => x * 2);
			console.log(mapped[0] === 2, mapped[1] === 4, mapped[2] === 6);

			// ============ Array.prototype.filter ============
			console.log('=== filter ===');
			let filtered = [1, 2, 3, 4].filter(x => x % 2 === 0);
			console.log(filtered.length === 2, filtered[0] === 2, filtered[1] === 4);

			// ============ Array.prototype.find ============
			console.log('=== find ===');
			console.log([1, 2, 3].find(x => x > 1) === 2);
			console.log([1, 2, 3].find(x => x > 5) === undefined);

			// ============ Array.prototype.findIndex ============
			console.log('=== findIndex ===');
			console.log([1, 2, 3].findIndex(x => x > 1) === 1);
			console.log([1, 2, 3].findIndex(x => x > 5) === -1);

			// ============ Array.prototype.findLast ============
			console.log('=== findLast ===');
			console.log([1, 2, 3, 2].findLast(x => x === 2) === 2);
			console.log([1, 2, 3].findLast(x => x > 5) === undefined);

			// ============ Array.prototype.findLastIndex ============
			console.log('=== findLastIndex ===');
			console.log([1, 2, 3, 2].findLastIndex(x => x === 2) === 3);
			console.log([1, 2, 3].findLastIndex(x => x > 5) === -1);

			// ============ Array.prototype.reduce ============
			console.log('=== reduce ===');
			console.log([1, 2, 3].reduce((a, b) => a + b) === 6);
			console.log([1, 2, 3].reduce((a, b) => a + b, 10) === 16);

			// ============ Array.prototype.includes ============
			console.log('=== includes ===');
			console.log([1, 2, 3].includes(2) === true);
			console.log([1, 2, 3].includes(5) === false);
			console.log(['a', 'b'].includes('a') === true);

			// ============ Array.prototype.sort ============
			console.log('=== sort ===');
			let sorted1 = [3, 1, 2].sort();
			console.log(sorted1[0] === 1, sorted1[1] === 2, sorted1[2] === 3);

			let sorted2 = [3, 1, 2].sort((a, b) => b - a);
			console.log(sorted2[0] === 3, sorted2[1] === 2, sorted2[2] === 1);

			let sorted3 = ['z', null, undefined, 'a'].sort();
			console.log(sorted3[0] === 'a', sorted3[1] === null, sorted3[2] === 'z', sorted3[3] === undefined);

			// ============ Array.prototype.reverse ============
			console.log('=== reverse ===');
			let rev = [1, 2, 3];
			rev.reverse();
			console.log(rev[0] === 3, rev[1] === 2, rev[2] === 1);

			// ============ Array.prototype.toSorted ============
			console.log('=== toSorted ===');
			let orig1 = [3, 1, 2];
			let toSorted1 = orig1.toSorted();
			console.log(orig1[0] === 3); // original unchanged
			console.log(toSorted1[0] === 1, toSorted1[1] === 2, toSorted1[2] === 3);

			// ============ Array.prototype.toReversed ============
			console.log('=== toReversed ===');
			let orig2 = [1, 2, 3];
			let toReversed1 = orig2.toReversed();
			console.log(orig2[0] === 1); // original unchanged
			console.log(toReversed1[0] === 3, toReversed1[1] === 2, toReversed1[2] === 1);

			// ============ Array.prototype.toSpliced ============
			console.log('=== toSpliced ===');
			let orig3 = [1, 2, 3, 4];
			let toSpliced1 = orig3.toSpliced(1, 2, 'a', 'b');
			console.log(orig3.length === 4); // original unchanged
			console.log(toSpliced1.length === 4);
			console.log(toSpliced1[0] === 1, toSpliced1[1] === 'a', toSpliced1[2] === 'b', toSpliced1[3] === 4);

			// ============ Array.prototype.flat ============
			console.log('=== flat ===');
			let flat1 = [1, [2, 3], [4, [5]]].flat();
			console.log(flat1.length === 5);
			console.log(flat1[0] === 1, flat1[1] === 2, flat1[2] === 3, flat1[3] === 4);

			let flat2 = [1, [2, [3, [4]]]].flat(2);
			console.log(flat2.length === 4);

			// ============ Array.prototype.indexOf ============
			console.log('=== indexOf ===');
			console.log([1, 2, 3, 2].indexOf(2) === 1);
			console.log([1, 2, 3].indexOf(5) === -1);

			// ============ Array.prototype.lastIndexOf ============
			console.log('=== lastIndexOf ===');
			console.log([1, 2, 3, 2].lastIndexOf(2) === 3);
			console.log([1, 2, 3].lastIndexOf(5) === -1);

			// ============ Sparse array handling ============
			console.log('=== sparse arrays ===');
			let sparse = [1, , 3];
			console.log(sparse.some(x => x === undefined) === false); // holes skipped
			console.log(sparse.filter(x => true).length === 2); // holes skipped

			// ============ Index correctness ============
			console.log('=== index correctness ===');
			let indices = [];
			[10, 20, 30].forEach((v, i) => indices.push(i));
			console.log(indices[0] === 0, indices[1] === 1, indices[2] === 2);

			// ============ Array reference in callback ============
			console.log('=== array reference ===');
			console.log([1, 2, 3].every((v, i, arr) => arr.length === 3) === true);

			console.log('=== ALL TESTS COMPLETE ===');

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