text: 
  function test() {
  
  	function test1() {
  
  		function test11() {
  			let [a, b, c] = [1, "2", '3'];
  
  			console.log(a === 1, b === "2", c === '3');
  		}
  		test11();
  
  		function test12() {
  			let [a, b, ...c] = [1, "2", '3', 4];
  
  			console.log(a === 1, b === "2", c.join("|") === '3|4');
  		}
  		test12();
  
  		function test13(arr) {
  			let [{a}, [b], ...c] = arr;
  
  			console.log(a === 9, b === 8, c.join("") === '7654321');
  		}
  		test13([{a: 9}, [8], 7, 6, 5, 4, 3, 2, 1]);
  
  	}
  	test1();
  
  }
  test();
  