js 数组的深浅拷贝

数组的浅拷贝与深拷贝 浅拷贝只复制第一层，深拷贝所有复制es6 浅拷贝：web // es6 const arr1 = [1, 2, 3, [4, 5, 6]]; const [...arr2] = arr1; // es5 var arr1 = [1, 2, 3, [4, 5, 6]]; var arr2 = arr1.slice(); arr2.push(7); arr2[3].push

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