JAVASCRIPT-JQUERY 求和 如何将第一个值(日期)分组并添加相同日期的值?
阵列:
0: (5) ["11-2019",20,0]
1: (5) ["11-2019",41,0]
2: (5) ["11-2019",29,0]
3: (5) ["11-2019",60]
4: (5) ["09-2019",1,0]
5: (5) ["09-2019",0]
6: (5) ["09-2019",1]
7: (5) ["05-2019",2,0]
OUT:
0: (5) ["11-2019",60]
1: (5) ["09-2019",1]
2: (5) ["05-2019",0]
result = DataAll.reduce(function(r,a) {
a.forEach(function(b,i) {
r[i] = (r[i] || 0) + b;
console.log(r[i]);
});
return r;
},[]);