我有一个对象数组,每个元素看起来像这样:
campaigns: (5) ["get.dentalintel.net/call-insight-DeshaunWatson", "get.dentalintel.net/practice-analysis-DeshaunWatson", "get.dentalintel.net/morning-huddle-DeshaunWatson", "get.dentalintel.net/new-morning-huddle-DeshaunWatson", "get.dentalintel.net/followups-DeshaunWatson"]
email: "dwats@gmail.com"
name: "Deshaun Watson"
submissions: [{…}]
user_id: 166
每个元素内都有一个提交对象数组,如下所示:
campaigns: (5) ["get.dentalintel.net/call-insight-DeshaunWatson", "get.dentalintel.net/practice-analysis-DeshaunWatson", "get.dentalintel.net/morning-huddle-DeshaunWatson", "get.dentalintel.net/new-morning-huddle-DeshaunWatson", "get.dentalintel.net/followups-DeshaunWatson"]
email: "dwats@gmail.com"
name: "Deshaun Watson"
submissions: Array(1)
0:
addedAt: 1574185321138
canonical-vid: 13476551
form-submissions: []
identity-profiles: [{…}]
is-contact: true
merge-audits: []
merged-vids: []
portal-id: 2271480
profile-token: "AO_T-mOo4xVvqmFyVkiizX8l0pCPZTakJOfo02uTm2kWzr68fzpXI6-xmyh4Gmj_Pzpp8IBDdbEN9CCRW4GeMfybZaSBiMZ8xXo2U2dylZ7QD3CufR-ERrazbZlKPaDyVzxaCqwvXU3W"
profile-url: "https://app.hubspot.com/contacts/2271480/contact/13476551"
properties: {partner_email: {…}, utm_campaign: {…}, lastmodifieddate: {…}, partner_last_name: {…}, email: {…}}
vid: 13476551
__proto__: Object
length: 1
__proto__: Array(0)
user_id: 166
唯一需要注意的属性是addedAt 值。 我想根据日期范围过滤掉提交对象。这是我到目前为止所尝试过的,但没有成功:
filterByDate = () => {
const { partners, endDate, startDate } = this.state;
partners.forEach(partner => {
for (let i = 0; i < partner.submissions.length; i++) {
if (
moment(partner.submissions[i].addedAt).isBetween(startDate, endDate)
) {
return partners;
} else {
return partner.submissions.splice(i, 1);
}
}
});
};
它会删除一些提交对象,但不会删除正确的对象。任何有关更好方法的建议将不胜感激。
最佳答案
要进行过滤,请使用Array.filter
。这将返回一个新数组,其中仅包含满足从callback
返回的boolean
的值。要从现有数组创建新数组,请使用 Array.map 而不是 Array.forEach。 forEach 循环仅迭代值,但 Array.map 会为每个元素返回修改后的值或新值。
const filterByDate = () => {
const { partners, endDate, startDate } = this.state;
const filteredPartners = partners.map(partner => {
return {
...partner,
submissions: partner.submissions.filter(submission =>
moment(submission.addedAt).isBetween(startDate, endDate)
)
};
});
};
Array.filter 和 Array.map 示例(无突变)
const testArray = [{
id: 1
}, {
id: 2
}, {
id: 3
}, {
id: 4
}]
const filtered = testArray.filter(e => e.id !== 3)
const mapped = testArray.map(e => {
return {
id: e.id,
name: `Name of ${e.id}`
}
})
console.log("Test Array: ", testArray)
console.log("Filtered Array: ", filtered)
console.log("Mapped Array: ", mapped)
关于javascript - 如何根据日期范围过滤掉对象数组中的数组?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/58940744/