All Questions

1
answer

How do I validate an e-mail field in Dart?

I created a simple project in Dart whose intention is to validate an email field when a button is clicked, showing an error message . However, the RegExp.hasMath function is always returning false . I do not know what could be wrong. B...
asked on 08.01.2014 / 02:25
1
answer

How to use github live code for development, testing and demos?

How can I use GitHub code in real time in a demo or in development? When I try to use code in jsFiddle or jsBin I get the error:    Refused to execute script from https://raw.github.com/utilizador/repositorio/ficheiro.js because its MI...
asked on 31.01.2014 / 00:08
1
answer

How to implement mappers in R?

I would like the answer to contain information about: What are mappers? How to create a mapper in R ? In what situations are mappers used (your role in functional programming)?
asked on 03.01.2019 / 02:48
1
answer

How can I detect and warn that a certain user is sending many messages in a row?

In a chat room, how can I detect and warn that a certain system user is sending lots of messages in a row?     
asked on 17.12.2013 / 05:48
2
answers

Import events into calendar JSON format

I want to import events from a non-private, server-side Google Calendar (PHP) into JSON format. Since I just want to receive information and do not need to edit / create events I assume there is a way that does not need authentication. I k...
asked on 04.02.2014 / 00:13
2
answers

How to create an AVD for Android in Delphi

I'm starting in Delphi® XE5 and would like to know how to configure / create an AVD to emulate Android applications. It only gives me the option to choose the device, but I have nothing in Target Android SDK 22.0.1     
asked on 09.02.2014 / 04:20
1
answer

Find list elements with partial strings

I have a List<string> that receives the phone number of all the contacts in the phone, until then without problem, but I want to perform operations with the elements of this list, but I have some problems. An example of a possibl...
asked on 24.09.2015 / 06:38
1
answer

What to do when Avast detects a threat in a harmless application?

I did a network stresser, no viruses, and blessed Avast! Alert and destroy my project:     
asked on 20.10.2015 / 22:57
3
answers

What is a Resource type in PHP? What is it for?

I'm new to the PHP language, studying it, I came across a special type available through the language, type resource . I found a definition for it:    Resource       A resource is a special variable, which maintains a reference to a...
asked on 05.10.2015 / 19:08
1
answer

Complex numbers in C ++

I'm new to C ++ and would like to know how to use complex numbers without being as follows: double real[2]={2,5}; double imaginario[2]{7,9}; cout << "Soma: " << real[0]+real[1] << "+" << imaginario[0]+imaginario[1] &l...
asked on 10.12.2015 / 23:53