首頁猿問 ES6 為多個數組運行不同的函數

ES6 為多個數組運行不同的函數

JavaScript

HUH函數 2021-09-30 15:18:15

我有一個sendEmail函數需要根據用戶在數組中的位置發送不同的電子郵件。例如，我有以下數據：[ { download: 'Release sale. 50% off!', user: '[email protected]' }, { download: 'Release sale. 50% off!', user: '[email protected]' }, { download: 'Release sale. 50% off!', user: '[email protected]' }, { download: 'Release sale. 50% off!', user: '[email protected]' } ][ { download: 'Test', user: '[email protected]' } ]對于每個數組，我需要累積所有user電子郵件和download字符串并運行以下函數：await transporter.sendMail({ from: '"Test" <[email protected]>', to: [email array here], subject: "Here is your file", text: `Here is your download: ${download}` })

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2 回答

慕無忌1623718

TA貢獻1744條經驗獲得超4個贊

您可以將數組組合成一個數組并對其進行迭代，sendMail()為每個元素調用您的方法。

const users1 = [{

download: 'Release sale. 50% off!',

user: '[email protected]'

{

download: 'Release sale. 50% off!',

user: '[email protected]'

{

download: 'Release sale. 50% off!',

user: '[email protected]'

{

download: 'Release sale. 50% off!',

user: '[email protected]'

}

];

const users2 = [{

download: 'Test',

user: '[email protected]'

}];

const allUsers = [...users1, ...users2];

const groupedUsers = allUsers.reduce((acc, u) => {

const group = acc.find(x => x.download === u.download);

if (group) {

group.users.push(u.user);

return acc;

}

return [...acc, {

download: u.download,

users: [u.user]

}];

}, []);

console.log(groupedUsers)

使用groupedUsers上面的列表，您應該能夠根據download屬性向用戶組發送電子郵件。

groupedUsers.forEach(async group => {

await transporter.sendMail({

from: '"Test" <[email protected]>',

to: group.users,

subject: "Here is your file",

text: `Here is your download: ${group.download}`

});

我使用了 spread ( ...) 運算符來組合數組，但concat()如果您愿意，也可以使用。const allUsers = users1.concat(users2);

反對回復 2021-09-30

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ES6 為多個數組運行不同的函數

ES6 為多個數組運行不同的函數

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