Javascript TypeError:无法读取属性';今天';未定义的
我有一个firebase项目,当运行firebase函数时,我会得到下面的错误日志,下面是错误日志和代码。错误是Javascript TypeError:无法读取属性';今天';未定义的,javascript,typescript,firebase,google-cloud-firestore,google-cloud-functions,Javascript,Typescript,Firebase,Google Cloud Firestore,Google Cloud Functions,我有一个firebase项目,当运行firebase函数时,我会得到下面的错误日志,下面是错误日志和代码。错误是 无法读取未定义的属性“toDate”,将admin.firestore.Timestamp转换为日期格式。如何解决这个错误 错误日志: 类型脚本: for(设i=0;i{ //const updateDate=data.date作为数字 如果(!context.auth){ //正在抛出HttpsError,以便客户端获取错误详细信息。 抛出新函数。https.HttpsError(
无法读取未定义的属性“toDate”,将admin.firestore.Timestamp
转换为日期
格式。如何解决这个错误
错误日志:
类型脚本:
for(设i=0;i新日期(data.date.getTime()){
responseCollection.push(postable);
}
}
JavaScript:
类后表{
构造函数(commentCount、dateTime、docId、post、userId、用户名){
this.commentCount=commentCount;
this.dateTime=dateTime.toDate().getTime();
this.docId=docId;
this.post=post;
this.userId=userId;
this.userName=用户名;
}
}
exports.getPosts=functions.https.onCall((数据、上下文)=>{
//const updateDate=data.date作为数字
如果(!context.auth){
//正在抛出HttpsError,以便客户端获取错误详细信息。
抛出新函数。https.HttpsError('failed-predition','必须调用函数'+
“认证时。”);
}
让responseCollection=[];
const cal=admin.firestore().collectionGroup('recentPostColl')。其中('users','array contains',context.auth.token.name)
.get()
.catch(错误=>{
抛出新函数.https.HttpsError(错误,“代码错误”);
});
返回cal.then(docCollection=>{
if(docCollection.empty!==true){
for(docCollection.docs中的const doc){
const document=docCollection.docs[doc];
const posts=document.get('recentPosts');
for(设i=0;i新日期(data.date.getTime()){
responseCollection.push(postable);
}
}
}
}
返回响应采集;
});
});
在您的课堂上,而不是:
this.dateTime=dateTime.toDate().getTime()
dothis.dateTime=dateTime&&dateTime.toDate().getTime()
(甚至更安全:this.dateTime=dateTime&&dateTime.toDate&&dateTime.toDate().getTime()
)
或者您可以使用一些默认值来解决它,如
this.dateTime=(dateTime | | defaultValue).toDate().getTime()
是否尝试对函数代码中的这一行执行相同的操作:const-date:date=stamp.toDate()
?像这样stamp&&stamp.toDate&&stamp.toDate()
?确实如此。这一次新错误无法读取未定义的属性“getTime”
,但现在您可以将if(date.getTime()>新日期(data.date).getTime()){
替换为if(date&&date.getTime()…
Unhandled error TypeError: Cannot read property 'toDate' of undefined
at new PostTable (/srv/lib/index.js:9:34)
at cal.then.docCollection (/srv/lib/index.js:69:39)
at <anonymous>
at process._tickDomainCallback (internal/process/next_tick.js:229:7)
class PostTable {
public commentCount: number
public dateTime: number;
public docId: string;
public post: string;
public userId: string;
public userName: string;
constructor(commentCount: number, dateTime: admin.firestore.Timestamp, docId: string, post: string, userId: string, userName: string) {
this.commentCount = commentCount
this.dateTime = dateTime.toDate().getTime()
this.docId = docId
this.post = post
this.userId = userId
this.userName = userName
}
}
for (let i = 0; i < posts.length; i++) {
const p = posts[i];
let commentCount;
let userName;
let docId;
let dateTime;
let post;
let userId;
for (let j = 0; j < Object.keys(p).length; j++) {
switch (Object.keys(p)[j]) {
case "commentCount": {
commentCount = Object.values(p)[j];
break;
}
case "userName": {
userName = Object.values(p)[j];
break;
}
case "docId": {
docId = Object.values(p)[j];
break;
}
case "dateTime": {
dateTime = Object.values(p)[j];
break;
}
case "post": {
post = Object.values(p)[j];
break;
}
case "userId": {
userId = Object.values(p)[j];
break;
}
}
}
const posttable: PostTable = new PostTable(
commentCount as number,
dateTime as admin.firestore.Timestamp,
docId as string,
post as string,
userId as string,
userName as string
);
const stamp: admin.firestore.Timestamp = dateTime as admin.firestore.Timestamp;
const date: Date = stamp.toDate();
if (date.getTime() > new Date(data.date).getTime()) {
responseCollection.push(posttable);
}
}
class PostTable {
constructor(commentCount, dateTime, docId, post, userId, userName) {
this.commentCount = commentCount;
this.dateTime = dateTime.toDate().getTime();
this.docId = docId;
this.post = post;
this.userId = userId;
this.userName = userName;
}
}
exports.getPosts = functions.https.onCall((data, context) => {
//const updatedDate = data.date as number
if (!context.auth) {
// Throwing an HttpsError so that the client gets the error details.
throw new functions.https.HttpsError('failed-precondition', 'The function must be called ' +
'while authenticated.');
}
let responseCollection = [];
const cal = admin.firestore().collectionGroup('recentPostColl').where('users', 'array-contains', context.auth.token.name)
.get()
.catch(error => {
throw new functions.https.HttpsError(error, 'code error');
});
return cal.then(docCollection => {
if (docCollection.empty !== true) {
for (const doc in docCollection.docs) {
const document = docCollection.docs[doc];
const posts = document.get('recentPosts');
for (let i = 0; i < posts.length; i++) {
const p = posts[i];
let commentCount;
let userName;
let docId;
let dateTime;
let post;
let userId;
for (let j = 0; j < Object.keys(p).length; j++) {
switch (Object.keys(p)[j]) {
case "commentCount": {
commentCount = Object.values(p)[j];
break;
}
case "userName": {
userName = Object.values(p)[j];
break;
}
case "docId": {
docId = Object.values(p)[j];
break;
}
case "dateTime": {
dateTime = Object.values(p)[j];
break;
}
case "post": {
post = Object.values(p)[j];
break;
}
case "userId": {
userId = Object.values(p)[j];
break;
}
}
}
const posttable = new PostTable(commentCount, dateTime, docId, post, userId, userName);
const stamp = dateTime;
const date = stamp.toDate();
if (date.getTime() > new Date(data.date).getTime()) {
responseCollection.push(posttable);
}
}
}
}
return responseCollection;
});
});