All Questions

2
answers

What does "14px / 1" syntax mean in font size declaration?

When I look at some source code of a website, I find a code that does not yet understand its meaning when the declaration of the font attribute. Example: p { font: Arial 14px/1; } I'd like to know exactly what this 14px/1...
asked on 16.01.2018 / 18:18
2
answers

Regular Expression R

I have a variable that indicates the year of elementary school that a student is attending, but this variable was not filled in uniquely. For example, the first year of elementary school because it is indicated as 1º ano , 1º Ano...
asked on 01.08.2017 / 15:54
1
answer

How to make and calculate the frequency distribution table in R?

I'm trying to make the Frequency distribution table in R, however, I'm not getting due to some formulas and calculations that I can not implement in R. The structure of the frequency distribution table is as follows: ---------------------...
asked on 27.06.2017 / 03:16
2
answers

Get the value of the input radio with javascript

I'm trying to quiz you and would like to get the value of the input radio, which are the answer options. Any tips on how I can do this using javascript only? <form> <h3>1. Which tag should used to represent the "header" of a...
asked on 12.07.2017 / 21:10
2
answers

Treat ArithmeticException in another method

I want to create a split method (double a, double b) that has try / catch to get the Arithmetic Exception, returning an error message by System.out.println; as it is not in the main method, I do not know how it has to be the signature of the met...
asked on 24.08.2015 / 19:26
2
answers

Toggle text and class of a link when clicked - jQuery

I'm trying to delegate a click event to a link inside a table, as this jsFiddle sample shows : The result you can see is: By clicking the " Enable " link, the click event assigned to the .activate class is triggered,...
asked on 15.10.2015 / 06:04
1
answer

Power Panel, WHM and Cpanel, what are their differences?

Well, I would like to know the difference between these 3 terms, which I believe designate the level of access to the server resources, for me, WHM is related to the management of server accounts, Cpanel would be the control pan...
asked on 03.09.2015 / 04:31
2
answers

How can I not allow the user to enter numbers and only text in Java?

I am creating a program on register in which the user has to put name, password, email, etc. But in the fields such as name I want the user can only put text instead of numbers, and that case he put a number to appear a message to speak that he...
asked on 12.12.2015 / 22:08
2
answers

Is it possible to restrict access to variable information with AngularJs?

Hello, I'm new to development and would like to know if there is any way to hide variable information in AngularJs, I'm using a MongoLab API and I did not want to leave my apiKey visible to anyone who debug the code in the browser, I'm runnin...
asked on 14.10.2015 / 05:44
3
answers

Error when trying to install modules in NodeJS: "Error: Can not find Python executable" python ", you can set the PYT HON env variable."

When I try to install the modules I need, it returns several errors at the time of installation (in this case I tried to install socket.io): MicrosoftWindows[versão6.3.9600](c)2013MicrosoftCorporation.Todososdireitosreservados.C:\Users\IvanS...
asked on 23.12.2015 / 11:32