如何在订阅和 ngOnInit 方法中循环遍历数组?
How to loop through an Array in a subscribe and ngOnInit method?
我有一个问题想遍历 ngOnInit() 方法中的 .subscribe() 方法:
ngOnInit() {
this.service.getEmployees().subscribe(
(listBooks) => {
this.books = listBooks
var events: CalendarEvent[] = [
{
start: new Date(this.books[0].date_from_og), //loop instead of 0
end: new Date(this.books[0].date_to_og),
title: "" + this.books[0].device + "",
color: colors.yellow,
actions: this.actions,
resizable: {
beforeStart: true,
afterEnd: true
},
draggable: true
}];
this.events = events;
},
(err) => console.log(err)
);
}
我想遍历 books[ ] 数组并推送 events[ ] 数组中的每个项目,但我不知道如何
然后,您可以直接遍历 books 数组:
ngOnInit() {
this.service
.getEmployees()
.subscribe(
(listBooks) => {
this.books = listBooks;
this.events = this.books.map((book) => {
return {
start: new Date(book.date_from_og), // use the book (current element in the iteration) directly here
end: new Date(book.date_to_og),
title: "" + book.device + "",
color: colors.yellow,
actions: this.actions,
resizable: {
beforeStart: true,
afterEnd: true
},
draggable: true
};
});
},
(err) => console.log(err)
);
}
试试这个:
this.books.forEach(element => {
let event = {
start: new Date(element.date_from_og),
end: new Date(element.date_to_og),
title: "" + element.device + "",
color: colors.yellow,
actions: this.actions,
resizable: {
beforeStart: true,
afterEnd: true
}
}
this.events.push(event)
});
我有一个问题想遍历 ngOnInit() 方法中的 .subscribe() 方法:
ngOnInit() {
this.service.getEmployees().subscribe(
(listBooks) => {
this.books = listBooks
var events: CalendarEvent[] = [
{
start: new Date(this.books[0].date_from_og), //loop instead of 0
end: new Date(this.books[0].date_to_og),
title: "" + this.books[0].device + "",
color: colors.yellow,
actions: this.actions,
resizable: {
beforeStart: true,
afterEnd: true
},
draggable: true
}];
this.events = events;
},
(err) => console.log(err)
);
}
我想遍历 books[ ] 数组并推送 events[ ] 数组中的每个项目,但我不知道如何
然后,您可以直接遍历 books 数组:
ngOnInit() {
this.service
.getEmployees()
.subscribe(
(listBooks) => {
this.books = listBooks;
this.events = this.books.map((book) => {
return {
start: new Date(book.date_from_og), // use the book (current element in the iteration) directly here
end: new Date(book.date_to_og),
title: "" + book.device + "",
color: colors.yellow,
actions: this.actions,
resizable: {
beforeStart: true,
afterEnd: true
},
draggable: true
};
});
},
(err) => console.log(err)
);
}
试试这个:
this.books.forEach(element => {
let event = {
start: new Date(element.date_from_og),
end: new Date(element.date_to_og),
title: "" + element.device + "",
color: colors.yellow,
actions: this.actions,
resizable: {
beforeStart: true,
afterEnd: true
}
}
this.events.push(event)
});