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How can I avoid typechecking in this situation


By : Pomc
Date : August 02 2020, 12:00 PM
This might help you You could use getClass() to get an item's class, and then count the number of unique ones:
code :
public void didWeWin() {
   if (inventory.stream().map(Object::getClass).distinct().count() == 3L) {
       win();
   }
}


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How do i avoid sub report in this situation


By : Tom Holmes
Date : March 29 2020, 07:55 AM
I wish this help you Just use groups: http://sql-bi-dev.blogspot.com/2010/09/groups-in-ssrs-2008.html
Let me know if there is something that I am missing.

Is there a way I can avoid using GoTo in this situation?


By : sin3
Date : March 29 2020, 07:55 AM
wish helps you Raising a custom error can avoid the use of GoTo for subroutines with this error handling structure. This has the added benefit of making it clear to anyone reading the code that failure of certain functions to complete is considered an error in this situation, even if they do not raise an error upon failure.
code :
Public Const cCustomErrNum = 9114

Private Sub cmdDoTheThing_Click()
On Error GoTo Err_cmdDoTheThing

    Screen.MousePointer = 11 'Hourglass/Equivalent

    'Check all data is available to Do The Thing
    If Not MyModule.ThingIsDoable(Me.PrimaryKey) Then
        Err.Raise cCustomErrNum,"cmd_DoTheThing_Click()", _
            "Cannot Do The Thing, more preliminary things must be done first."
    End If

    'Try to Do The Thing (function returns false on failure)
    If Not MyModule.DoTheThing(Me.PrimaryKey) Then
        Err.Raise cCustomErrNum,"cmd_DoTheThing_Click()", _
            "Processing of The Thing failed."
    End If

    '...
    'Stuff here I don't want to do if either of the above failed
    '...

Exit_cmdDoTheThing:
    Screen.MousePointer = 0 'Default mouse pointer
    Exit Sub

Err_cmdDoTheThing:
    MsgBox "Error " & Err.Number & ": " & Err.Description
    Resume Exit_DoTheThing
End Sub

how can i avoid eval in this situation


By : Rhi Muey
Date : March 29 2020, 07:55 AM
I wish this help you Writing a title_tag helper, i want to have the following yml file structure , You can use send instead of eval:
code :
content = var.split('.').inject(nil){|clazz, method| clazz.nil? ? instance_variable_get(method) : clazz.send(method)}
title.gsub! replace, content

How to avoid N+1 in this situation


By : Jason P Sage
Date : March 29 2020, 07:55 AM
Hope this helps I'm trying to implement a "liking" system in my app. I render a table with orders, then the current user is able to "like" an order so she will get notifications when the status of the order changes. The problem is that I'm in an N+1 issue, since each time the table gets rendered, the program makes as many queries as orders are displayed to detect if an order has already been "liked" by the user.
code :
class User < ApplicationRecord
  has_many :likes

  has_many :liked_orders, through: :likes, class_name: 'Order'

  def liked_orders_id
    @liked_orders_id ||= liked_orders.pluck(:id)
  end

  def liked_order?(order_id)
    liked_orders_id.include?(order_id)
  end
end
  def likes?(order)
    order.likes.where(user_id: id).any?
  end
  has_many :liked_orders, through: :likes, source: :order

how to avoid the else in this situation


By : Mitra Rat
Date : March 29 2020, 07:55 AM
To fix this issue You have not made your requirement completely clear but i think your requirement needs a switch block.
[Edit]: Since later the tag for Java was added - what you can do is to use an enum for this.
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