operators

问题 I have checked out some code and I got an error ('invalid expression term "^"' to be exact) in the line // choices is a regular array return choices[^1]; I have never seen a unary caret operator (I am only aware of the XOR operator, but that one obviously takes two operands). Does this operator exist and if so, what does it do? Note: The site https://www.tutorialsteacher.com/csharp/csharp-operators mentions a unary caret operator in the precedence table but it does not explain what it does.

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 5 years ago . Improve this question I want to know how to get the product of two integers using only the addition or subtraction operators and without using the division and multiplication. If you could add the while statement that would be helpful. A Basically, I want to know how to add a

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 5 years ago . Improve this question I want to know how to get the product of two integers using only the addition or subtraction operators and without using the division and multiplication. If you could add the while statement that would be helpful. A Basically, I want to know how to add a

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 5 years ago . Improve this question I want to know how to get the product of two integers using only the addition or subtraction operators and without using the division and multiplication. If you could add the while statement that would be helpful. A Basically, I want to know how to add a

问题 There is a dropdown menu which says select playlist. And there are certain number of songs in each playlist. For example: The playlist includes: POP (total number of songs = 3), ROCK (songs = 4 ), Jaz (songs= 5), Classical(songs= 6) Suppose a user chose one playlist- POP and typed number 3 in the textbox (songnumber box) then when clicked SEARCH button it will open POP3.mp3 file from the audio folder (if it is there), and else it will show the song not available in the database . And if the

问题 What does dict | dict2 operation do in Python? I came across it and I am not sure what it actually does and when to use it. 回答1: New dictionary update and merge operators (Python >= 3.9) Starting with Python 3.9 it is possible to use merge ( | ) and update ( |= ) operators in Python. They are described in PEP-584. Essentially the semantics is that the value for the last duplicate key overwrites previous values and becomes the values for the key in the resulting dictionary. These operators are

问题 What does dict | dict2 operation do in Python? I came across it and I am not sure what it actually does and when to use it. 回答1: New dictionary update and merge operators (Python >= 3.9) Starting with Python 3.9 it is possible to use merge ( | ) and update ( |= ) operators in Python. They are described in PEP-584. Essentially the semantics is that the value for the last duplicate key overwrites previous values and becomes the values for the key in the resulting dictionary. These operators are

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 1 hour ago . Improve this question The question is ' Given a non-empty array of integers, every element appears three times except for one, which appears exactly once. Find that single one. ' I came up with a simple solution but found this solution online and was confused. Can someone explain

问题 I have a site with Drupal 8 and I want to create a task counter with TWIG. I use views with conditions. The counter must be incremented whether the view has a result or not. Here is the code I just made : <span class="badge badge-warning task-badge-warning"> {% if drupal_view_result('boutique_page_liste_des_taches_produit_non_publie', 'block_1') is not empty %} 1 {% endif %} {% if drupal_view_result('boutique_page_liste_des_taches_role_marchand', 'block_1') is empty %} 1 {% endif %} </span>

问题 I have a site with Drupal 8 and I want to create a task counter with TWIG. I use views with conditions. The counter must be incremented whether the view has a result or not. Here is the code I just made : <span class="badge badge-warning task-badge-warning"> {% if drupal_view_result('boutique_page_liste_des_taches_produit_non_publie', 'block_1') is not empty %} 1 {% endif %} {% if drupal_view_result('boutique_page_liste_des_taches_role_marchand', 'block_1') is empty %} 1 {% endif %} </span>