All Questions

2
answers

When to use SET and SELECT?

I know that as in practically all issues related to "one or the other" there should be situations where it is best to use SET or SELECT , in a procedure (for example). At work we have the habit of always using SELECT , ev...
asked on 29.09.2017 / 19:32
3
answers

What is the difference between double quotation marks and single quotes in Javascript?

Context In PHP, there is a difference between the use of single and double quotes. In this case, single quotes are for "% common%", and double quotes, used when you want to process strings (concatenate, for example). Question Is...
asked on 01.02.2014 / 20:47
2
answers

What's the difference between Switch, Case and If, Else?

I would like to know the difference between switch .. case and if .. else . What offers better "performance"?     
asked on 13.04.2015 / 20:33
3
answers

PHP and MySQL, how thousands of connections are processed at the same time?

Using PHP and MySQL as an example, let's assume that there are 1000 connections (clients) accessing the site and using functions that open connection to MySQL and make queries. How do PHP and MySQL process so many connections and queries at the...
asked on 24.05.2014 / 18:06
1
answer

Notice Git: LF will be replaced by CRLF

I created a file called tests.html inside a folder. After typing: git add tests.html The message was displayed:    warning: LF will be replaced by CRLF in tests.html   The file will have its original line endings in your working dir...
asked on 17.12.2014 / 20:54
7
answers

How to convert a JSON response to an object in C #?

I'm making a request and getting a JSON like this: { "id": "1000000000000000", "name": "BrunoLM", "first_name": "Bruno", "last_name": "X", "link": "http://stackoverflow.com/users/340760/brunolm", "username": "brunolm", "bio...
asked on 20.12.2013 / 13:39
2
answers

What is a deterministic and non-deterministic algorithm?

What is a deterministic and non-deterministic algorithm? What are the characteristics of both? Is it possible to implement both in any language?    OBS: if possible, exemplify with some implementation     
asked on 08.12.2015 / 14:09
1
answer

How to develop two versions of the same application, one being free and the other paying?

I'm starting to develop an Android app using Android Studio, and I want to make it available in two versions, one paid, with more features, and one free, more basic. I thought about starting to develop and after finishing the base version, co...
asked on 09.01.2015 / 22:32
4
answers

What are Progressive Web Apps?

Hello, I have read references there, and to complement our community, follow the questions. What exactly is Progressive Web App (PWA) or Web Application Progressive? What are the advantages compared to native and / or hybrid applications?...
asked on 20.09.2016 / 19:01
4
answers

Is it possible to create an 'abstract class' in Javascript?

When creating a Javascript class whose attributes and methods are all static (for example, for storing predefined settings for a game), I would like to know if it is possible to define the class as abstract in a similar way as it can be (where t...
asked on 14.01.2014 / 02:05