假设,JSON 输出为:
outJSON =
[ {
team: "TeamA",
name: "Ahmed",
field3:"val3"
},
{
team: "TeamB",
name: "Ahmed",
field3:"val43"
},
{
team: "TeamA",
name: "Ahmed",
field3:"val55"
},
]
接下来请查看以下 DEMO 中的 groupBy
函数:
outJSON = [{
team: "TeamA",
name: "Ahmed",
field3: "val3"
}, {
team: "TeamB",
name: "Ahmed",
field3: "val43"
}, {
team: "TeamA",
name: "Ahmed",
field3: "val55"
}]
var groupBy = function(xs, key) {
return xs.reduce(function(rv, x) {
(rv[x[key]] = rv[x[key]] || []).push(x);
return rv;
}, {});
};
var groubedByTeam = groupBy(outJSON, 'team')
console.log(groubedByTeam);
那么,如果你想循环遍历类别(团队),获取所有类别并存入数组:
Object.keys(groubedByTeam) // return ["TeamA","TeamB"]
Object.keys(groubedByTeam).forEach(function(category) {
console.log(`Team ${category} has ${groubedByTeam[category].length} members : `);
groubedByTeam[category].forEach(function(memb,i){
console.log(`---->${i+1}. ${memb.name}.`)
})
});