需要展示出一天中所有小時(shí)的數(shù)據(jù),后端返回的數(shù)據(jù)是這樣
beforData: [
{
"time_hours": "09", // 時(shí)間
"approved_amount": 28068.0,
"pass_rate": 1.0
},
{
"time_hours":"10",
"approved_amount":0.0,
"pass_rate":0.0
},
{
"time_hours":"11",
"approved_amount":42706.0,
"pass_rate":0.5
},
{
"time_hours":"13",
"approved_amount":0.0,
"pass_rate":0.0
},
{
"time_hours":"15",
"approved_amount":37700.0,
"pass_rate":0.5714285714
},
{
"time_hours":"16",
"approved_amount":0.0,
"pass_rate":0.0
},
{
"time_hours":"17",
"approved_amount":29520.0,
"pass_rate":0.6
},
{
"time_hours":"18",
"approved_amount":0.0,
"pass_rate":0.0
},{
"time_hours":"19",
"approved_amount":56216.0,
"pass_rate":1.0
},
{
"time_hours":"22",
"approved_amount":5800.0,
"pass_rate":1.0
},
{
"time_hours":"23",
"approved_amount":0.0,
"pass_rate":0.0
}
]
需要將缺少的小時(shí)補(bǔ)全,轉(zhuǎn)化成
[
{
"time_hours": "01:00",
"approved_amount": null,
"pass_rate": null,
},
{
"time_hours": "02:00",
"approved_amount": null,
"pass_rate": null,
},
{
"time_hours": "03:00",
"approved_amount": null,
"pass_rate": null,
},
{
"time_hours": "04:00",
"approved_amount": null,
"pass_rate": null,
},
{
"time_hours": "05:00",
"approved_amount": null,
"pass_rate": null,
},
{
"time_hours": "06:00",
"approved_amount": null,
"pass_rate": null,
},
{
"time_hours": "07:00",
"approved_amount": null,
"pass_rate": null,
},
{
"time_hours": "08:00",
"approved_amount": null,
"pass_rate": null,
},
{
"time_hours": "09:00",
"approved_amount": 28068.0,
"pass_rate": 1.0
},
{
"time_hours":"10:00",
"approved_amount":0.0,
"pass_rate":0.0
},
{
"time_hours":"11:00",
"approved_amount":42706.0,
"pass_rate":0.5
},
{
"time_hours": "12:00",
"approved_amount": null,
"pass_rate": null,
},
{
"time_hours":"13:00",
"approved_amount":0.0,
"pass_rate":0.0
},
{
"time_hours": "14:00",
"approved_amount": null,
"pass_rate": null,
},
{
"time_hours":"15:00",
"approved_amount":37700.0,
"pass_rate":0.5714285714
},
{
"time_hours":"16:00",
"approved_amount":0.0,
"pass_rate":0.0
},
{
"time_hours":"17:00",
"approved_amount":29520.0,
"pass_rate":0.6
},
{
"time_hours":"18:00",
"approved_amount":0.0,
"pass_rate":0.0
},{
"time_hours":"19:00",
"approved_amount":56216.0,
"pass_rate":1.0
},
{
"time_hours": "20:00",
"approved_amount": null,
"pass_rate": null,
},
{
"time_hours": "21:00",
"approved_amount": null,
"pass_rate": null,
},
{
"time_hours":"22:00",
"approved_amount":5800.0,
"pass_rate":1.0
},
{
"time_hours":"23:00",
"approved_amount":0.0,
"pass_rate":0.0
},
{
"time_hours": "00:00",
"approved_amount": null,
"pass_rate": null,
},
]
這樣的,請教一下大家這個(gè)要怎么做???
不謝,拿走:
const beforeData = [{
"time_hours": "09", // 時(shí)間
"approved_amount": 28068.0,
"pass_rate": 1.0
}];
const result = Array.from({length: 24}, (v, i) => i).map(hour => {
let obj = beforeData.filter(has => Number(has.time_hours) === hour)[0] || {};
return {
time_hours: `${`00${hour}`.slice(-2)}:00`,
approved_amount: obj.approved_amount || null,
pass_rate: obj.pass_rate || null
};
});
console.log(result);
就這么簡單~~~
補(bǔ)充一個(gè)線性時(shí)間復(fù)雜度的
function getFullRange (beforeData) {
return beforeData
.reduce((arr, item) => {
arr[+item.time_hours] = item
return arr
}, [...new Array(24)])
.map((item, i) => {
if (!item) {
item = {
time_hours: String(i),
approved_amount: null,
pass_rate: null,
}
}
item.time_hours = item.time_hours.padStart(2, '0') + ':00'
return item
})
}
let completeData = [{'time_hours': '01:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '02:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '03:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '04:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '05:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '06:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '07:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '08:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '09:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '10:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '11:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '12:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '13:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '14:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '15:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '16:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '17:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '18:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '19:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '20:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '21:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '22:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '23:00', 'approved_amount': null, 'pass_rate': null}, {'time_hours': '00:00', 'approved_amount': null, 'pass_rate': null}]
let afterData = completeData.map(val => {
let res = beforData.find(v => v.time_hours === val.time_hours.slice(0, 2))
res ? res.time_hours = val.time_hours : res = val
return res
})
console.log(afterData)
既然結(jié)果是固定的 就反過來遍歷唄
var data = [{
"time_hours": "09", // 時(shí)間
"approved_amount": 28068.0,
"pass_rate": 1.0
},
{
"time_hours":"10",
"approved_amount":0.0,
"pass_rate":0.0
},
{
"time_hours":"11",
"approved_amount":42706.0,
"pass_rate":0.5
},
{
"time_hours":"13",
"approved_amount":0.0,
"pass_rate":0.0
},
{
"time_hours":"15",
"approved_amount":37700.0,
"pass_rate":0.5714285714
},
{
"time_hours":"16",
"approved_amount":0.0,
"pass_rate":0.0
},
{
"time_hours":"17",
"approved_amount":29520.0,
"pass_rate":0.6
},
{
"time_hours":"18",
"approved_amount":0.0,
"pass_rate":0.0
},{
"time_hours":"19",
"approved_amount":56216.0,
"pass_rate":1.0
},
{
"time_hours":"22",
"approved_amount":5800.0,
"pass_rate":1.0
},
{
"time_hours":"23",
"approved_amount":0.0,
"pass_rate":0.0
}]
function trans (data) {
let result = []
let cur = 1
function format(time) {
time = time < 10 ? '0' + time : time
return time + ':00'
}
function genRange(i, j) {
let result = []
for (; i < j; i++) {
result.push({time_hours: format(i), approved_amount: null, pass_rate: null})
}
return result
}
data.forEach(item => {
let now = +item.time_hours
if (cur !== now) result = result.concat(genRange(cur, now))
result.push(Object.assign({}, item, {time_hours: format(now)}))
cur = now + 1
})
if (cur < 25) result = result.concat(genRange(cur, 25))
return result
}
let result = trans(data)
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