All Questions

3
answers

How to set the software version?

I would like to know what software version number (s) are and how they work, such as v1.1.2 what does it mean? Is there any standard or recommendation for web application versions?     
asked on 03.12.2015 / 22:52
8
answers

Giving a "SELECT" before an "INSERT" is a safe way of not having duplicate records?

I have a table with a codigo column. I can not set it as primary key. On a system that receives many notifications before it checks with a SELECT to see if that code already exists in the table. If it does not exist it gives INS...
asked on 16.01.2014 / 16:39
3
answers

What is Transpilation?

I started reading a article on EcmaScript 6 and I came across the term Transpilation , which in Portuguese would be Transpilation . Besides that, I noticed that other articles use this term. It's the first time in my programming life that...
asked on 14.03.2017 / 12:58
3
answers

How to return the project to a specific commit?

Assuming a condition where, I have a project with 20 commits, and I decide for unexplained reasons to return some commits independently if I want to go back 4, 5 or 10, assuming the description of my commits are clear, I view my last commits usi...
asked on 06.06.2014 / 04:15
2
answers

What is the function of the ~ (tilde) operator in JavaScript?

I tried to search for Google and SOEN, but I did not find any reference to the ~ operator, I discovered that it exists, since I was reading a book about JavaScript and had an example using it, but the author also had not made any referenc...
asked on 02.01.2014 / 22:03
4
answers

Difference between: disabled and: readonly in HTML?

Usually both have similar behaviors when rendered in the browser. If I open an HTML with this: <input type="text" value="tente me alterar" disabled> <input type="text" value="tente me alterar" readonly> Both do not allow the...
asked on 20.02.2014 / 21:25
3
answers

What is and what does a full stack web developer do?

I've been looking for this term and I did not quite understand the role of this IT professional. What is a "full stack web developer" ?     
asked on 28.02.2015 / 01:24
4
answers

What are the main differences between jQuery and AngularJS?

I'm realizing AngularJS membership and abandonment of jQuery by some developers, however I do not know the advantages of AngularJS because I've never worked with this framework . Since some blogs (eg jeremyzerr , paulhammant ) encourage th...
asked on 16.06.2014 / 00:00
4
answers

How do the date () function format a date in Portuguese?

In my project I am using the date() function, however I would like it to be in Portuguese, my current format is: "Thursday 6th", I would like it to be in the same model but in Portuguese, this is my formatting : // $article['article_tim...
asked on 06.03.2014 / 19:17
6
answers

What is the difference between .on ("click", function () {}) and .click (function () {})?

I usually use, because I learned that it was the most correct , the assignment of events as follows: $('seletor').on('click', function(){}); However, I see many developers using the following syntax: $('seletor').click(function (){});...
asked on 11.02.2014 / 13:32