Posts by Romano • 495 points
15 posts
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viewsQ: Object.is() and === - What is the difference?
What would be the difference of the builder Object.() for the operator === Since both compare if two values are the same, the difference would only be the type of description when returning?…
javascriptasked Romano 495 -
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viewsQ: What is the range() function in Python for?
What is the function for range() in Python? What is its real use? It’s just a numerical list?
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viewsQ: Using Append - Python
What is the need to use the "Append" function in my code? They say it can be used to add another element to my Python list, but wouldn’t it be simpler to add this other element in a traditional way?…
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viewsQ: Difference and use between Primary Key and Foreign Key
I did a database modeling relating some tables and at the end of everything I was told that I was wrong for not having PK and FK keys. The question is, how do I differentiate a Primary Key from a…
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viewsQ: Indefinite Index - PHP
In my PHP code, even with Mysql and Apache linked, error appears Notice: Undefined index: name in C: xampp htdocs store add-product.php on line 4 Notice: Undefined index: preco in C: xampp htdocs…
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viewsA: View project - PHP
Solved, the problem was port related, I decided to access Xampp > Apache > Conf > httpd.conf, when opening the file by notepad I changed Listen 80 to another port number and it worked. To…
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viewsQ: View project - PHP
I’m starting in PHP language and would like to know how I view my project, since when using localhost the error "404" appears with the message "Not Found". The directory of my file . php is this: C:…
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viewsA: Which of these options is better and faster for an INSERT in the bank?
Come on, down I’ll try to explain: -insert_recordset: copies the data from one or more tables directly to a destination table, so it only makes one journey from the server. This ends up being faster…
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viewsQ: To learn C++ is it necessary to learn C?
In case I want to learn about C++ I need to learn C before or they are different?
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viewsQ: Lambda in Python - Doubt
In study on python 3, what would be the function of lambda in Python, what it serves and when it is used?
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viewsA: Lambda in Python - Doubt
Lambda is a function defined in the program’s Runtime (runtime). It can be used to simplify some operations, but more than that English brings a functional semantics to the language, in which you…
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viewsQ: What is the difference between the <del> and <s> tag?
I saw about the tags <del> and <s>, say that one is to be used in texts/phrases not relevant and another to "delete" part of the text, but when using both tags the effect is the same (a…
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viewsQ: How many classes can I put in one code?
How many "classes" I can add to my code? Let’s say I have the following existing command block: namespace _06_ByteBank { public class Cliente { private string _cpf; public string Nome { get; set; }…
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viewsQ: Alias directive - What would it be?
Good afternoon, everyone, I’ve been studying C#, I came to see about the Directive using, and in the C# documentation it says it has 3 uses, one of the 3 use items says it serves to create an…