Is there a way to programmatically add a timestamp to a form in Angular6?

Is there a way to automatically populate new forms with the current datetime value? 

    this.editForm.patchValue({
      id: chatRoom.id,
      creationDate: chatRoom.creationDate != null ? chatRoom.creationDate.format(DATE_TIME_FORMAT) : null,
      roomName: chatRoom.roomName,
      roomDescription: chatRoom.roomDescription,
      privateRoom: chatRoom.privateRoom,
      chatUserId: chatRoom.chatUserId
    });

In the past, I used 

      this.creationDate = moment().format(DATE_TIME_FORMAT);
      this.chatRoom.creationDate = moment(this.creationDate);

If you have any insights on how to achieve this, please share!

Many thanks for your assistance

angulartypescript

Answer №1

One way to ensure better code readability and organization is by creating a constant variable before using it in the following manner:

    const updatedDate = moment(moment().format('YYYY-MM-DDTHH:mm'), 'YYYY-MM-DDTHH:mm');

    this.editForm.patchValue({
      id: chatRoom.id,
      creationDate:
        proposal.creationDate != null
          ? proposal.creationDate.format(DATE_TIME_FORMAT)
          : JSON.stringify(updatedDate)
              .split(':00.000Z')
              .join('')
              .split('"')
              .join(''),
      roomName: chatRoom.roomName,
      roomDescription: chatRoom.roomDescription,
      privateRoom: chatRoom.privateRoom,
      chatUserId: chatRoom.chatUserId
    });

Answer №2

One possible solution could involve leveraging the new Date() method. If specific formatting is required, that can also be incorporated.

    this.updateForm.patchValue({
      id: consoleRoom.id,
      startDateTime: new Date(),
      roomName: consoleRoom.roomName,
      roomDescription: consoleRoom.roomDescription,
      isPrivate: consoleRoom.isPrivate,
      userId: consoleRoom.userId
    });

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