一、数据类型
groups = [
{
"name": "1", "age": 15},
{
"name": "1", "age": 16},
{
"name": "2", "age": 17},
{
"name": "2", "age": 18},
];
二、定义分组函数groupBy
groupBy(array, f) {
const groups = {
};
array.forEach(function (o) {
const group = JSON.stringify(f(o));
groups[group] = groups[group] || [];
groups[group].push(o);
});
return Object.keys(groups).map(function (group) {
return groups[group];//返回数组
});
// return groups;//返回对象
}
三、使用分组函数groupBy
let groupData = _this.groupBy(groups, (link) => {
return [link.name]
})