JavaScript(js)如何根据数组元素的某个属性值生成所有可能的排列组合呢?
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在进行JavaScript的前端项目程序开发中,有一个包含name
和options
属性的产品对象数组,现需要组合所有可能的产品组合。需要注意的是:这个数组有N个对象,每个对象有M个选项。
数组结构如下:
var input = [
{
name: "Size",
options: [ { value: "S" }, { value: "M" }, { value: "L" }, ...and so on]
},
{
name: "Color",
options: [ { value: "Red" }, { value: "White" }, { value: "Blue" }, ...and so on]
},
{
name: "Weight",
options: [ { value: "1kg" }, { value: "2kg" }, { value: "3kg" }, { value: "4kg"}, ]
}
];
期望以数组的形式生成所有可能的组合,数组本身包含一个带有对象名称和值的对象数组,比如期望的结果为:
var output = [
[ {name: 'Size', value: 'S'}, {name: 'Color', value: 'Red'}, {name: 'Weight', value: '1kg'} ],
[ {name: 'Size', value: 'S'}, {name: 'Color', value: 'Red'}, {name: 'Weight', value: '2kg'} ],
[ {name: 'Size', value: 'S'}, {name: 'Color', value: 'Red'}, {name: 'Weight', value: '3kg'} ],
[ {name: 'Size', value: 'S'}, {name: 'Color', value: 'Red'}, {name: 'Weight', value: '4kg'} ],
[ {name: 'Size', value: 'S'}, {name: 'Color', value: 'White'}, {name: 'Weight', value: '1kg'} ],
[ {name: 'Size', value: 'S'}, {name: 'Color', value: 'White'}, {name: 'Weight', value: '2kg'} ],
[ {name: 'Size', value: 'S'}, {name: 'Color', value: 'White'}, {name: 'Weight', value: '3kg'} ],
[ {name: 'Size', value: 'S'}, {name: 'Color', value: 'White'}, {name: 'Weight', value: '4kg'} ],
[ {name: 'Size', value: 'S'}, {name: 'Color', value: 'Blue'}, {name: 'Weight', value: '1kg'} ],
[ {name: 'Size', value: 'S'}, {name: 'Color', value: 'Blue'}, {name: 'Weight', value: '2kg'} ],
[ {name: 'Size', value: 'S'}, {name: 'Color', value: 'Blue'}, {name: 'Weight', value: '3kg'} ],
[ {name: 'Size', value: 'S'}, {name: 'Color', value: 'Blue'}, {name: 'Weight', value: '4kg'} ],
[ {name: 'Size', value: 'M'}, {name: 'Color', value: 'Red'}, {name: 'Weight', value: '1kg'} ],
[ {name: 'Size', value: 'M'}, {name: 'Color', value: 'Red'}, {name: 'Weight', value: '2kg'} ],
[ {name: 'Size', value: 'M'}, {name: 'Color', value: 'Red'}, {name: 'Weight', value: '3kg'} ],
[ {name: 'Size', value: 'M'}, {name: 'Color', value: 'Red'}, {name: 'Weight', value: '4kg'} ],
[ {name: 'Size', value: 'M'}, {name: 'Color', value: 'White'}, {name: 'Weight', value: '1kg'} ],
[ {name: 'Size', value: 'M'}, {name: 'Color', value: 'White'}, {name: 'Weight', value: '2kg'} ],
[ {name: 'Size', value: 'M'}, {name: 'Color', value: 'White'}, {name: 'Weight', value: '3kg'} ],
[ {name: 'Size', value: 'M'}, {name: 'Color', value: 'White'}, {name: 'Weight', value: '4kg'} ]
];
使用JavaScript(js)应该如何生成这种数组的排列组合呢?