All Questions

2
answers

What is the unicode signature (BOM)

I noticed that sometimes dreamweaver puts assinatura unicode (BOM) on some php pages, I have to remove most of the time so that there is no space on the page to display and I'm not sure what%% of% would you like to explain?     
asked on 20.03.2014 / 16:51
1
answer

Is Android an OS or software stack?

The settings given by Google for Android    "Android is an open-source software stack for a wide range of mobile   devices and a corresponding open-source project led by Google. " and by American Wikipedia    "Android is an operatin...
asked on 19.05.2014 / 21:20
1
answer

Are there differences between //, / * * / and #?

Considering how important it is to comment on a code , that question came to me. I noticed that there are several ways to comment lines / parts of the code : // /* */ # Example: // comentando uma linha /...
asked on 08.08.2018 / 21:54
2
answers

What is the function of the operators, and in Javascript

What is the function of the mathematical operators << , >> and >>> in Javascript? Examples: 0 or 1 >> 1 is 0 2 or 3 >> 1 is...
asked on 01.03.2014 / 21:18
2
answers

Detect prolonged click, javascript

Assuming these types of clicks: 1 CLICK 2 CLIQUES FOLLOWED PROLONGED CLICK I know how to detect the normal click and dbclick but how to detect the extended click? that click that you click and hold for X time for example?     
asked on 11.07.2015 / 16:59
2
answers

What is the Declare keyword used in PHP?

After all, what is the declare keyword used in PHP? I've seen explanations out there, including in the PHP Manual , but not yet I found it very clear. Can it be useful for development? Example: declare (ticks=1) { // todo...
asked on 26.02.2015 / 15:38
2
answers

What are the states of a thread?

I've been searching in some places on the internet but I have not found any coherence in the definitions given on the subject of thread in Java. What are the possible states of a thread and what are its definitions.     
asked on 06.10.2016 / 16:03
5
answers

What is the fastest is_null ($ y) or $ y == null?

What is the fastest is_null($y) or $y == null ?     
asked on 06.07.2015 / 14:57
2
answers

What are middleware in NodeJS?

What are middleware and what is its importance to the Node platform?     
asked on 18.05.2015 / 16:41
5
answers

How to declare a date variable in C?

I need to create an abstract type of data that represents a person, including name, date of birth and CPF, and create a variable that is a pointer to this TAD (in the main program). To a certain extent I know, but I do not know which is the r...
asked on 04.05.2016 / 18:48