operadores

I would like to know what the difference between: window.RM = window.RM || {}; E: window.RM = window.RM && {}; ... s, in the context of logical operators, but I don't know how to differentiate them in cases like the ones demonstrated above.

In java and other languages I've seen in some projects things like: saldo -= 100 and sometimes saldo =- 100 but I could nev ... pes, that if it contains any difference. After all, is there any difference between performing an operation with -= and =- ?

The comma is what? Just a construction of language? An operator? Why does she exist? This question is based on what was seen in How to return or extract more than one value from a function?. return base2, base3, base4

What is the difference in using the Equals method for the == operator in situations of comparing (1) Value Types and (2) reference types?

I tried searching Google and SOEN, but found no reference to the operator ~, found that it exists, as I was reading a book ab ... = 9 var x = ~true; // x = -2 var y = ~false;// y = -1 What is the function of the ~ operator and when is it generally used?

I was parsing a code and came across the operator |=, I would like to know what this means, and what is its practical application. Example: x |= y

I need to figure out whether or not each element of a chained list is a vowel. How can I fix my code? int BuscaNv(LISTA* re ... Typedefs: typedef struct estr { char letra; struct estr *prox; } NO; typedef struct { NO *inicio; } LISTA;

I want to change 1 bit and keep the same values of the other neighboring bits. The bit operator shifts left or right, changi ... . As an alternative, I change the integer itself, with this the bit I want is changed. Please, can anyone help? Thank you!

Having this class, I would like to implement, operator =, copy the vector of pointers to int to another vector, is it mandat ... n this case)? class ints{ private: vector <int*> inteiros; public: ints & operator=(const ints & i1); }

I'm watching this tutorial about creating a game and I came across something I didn't understand about the Lua language. Th ... ode where there is the following expression: ents.objects[#ents.objects] What Does # (cerquilha) mean in this expression?

Is it possible to use more than one condition at a time when using the ternary operator? <?php if($ativa == 0): echo ... condition above there is a block of if/else/elseif. Would there be a way to transform the block above using ternary operator?

I've seen some uses of ... but I'm not sure what it does. Example: var a = [1, 2, 3]; var b = [4, 5, ...a]; What is this operator called and how does it work?

Parsing a script PHP in a certain snippet I came across this line $valor = $_GET['id'] ?? 1; What is the interpretation of this code? What does he do?

I'm trying to know this, but it shows up nowhere. It has a space between & & e !. if ( is_home() && ! is_front_page() )

I was seeing some solutions in JavaScript and in one case I saw this command line: return args.reduce((s, v) => s + v, 0);. But I don't know what the => Operator means. What is its function?

Was doing some research and came across the sequence operator |=. See: mBuilder.getNotification().flags |= Notification.FLA ... I do not know exactly if it follows the same syntax in other languages and I was in doubt. What does the operator |= mean?

What is the meaning of this & in front of the Matrix(my function only works with &, I'm overloading cout And also t ... [i][j] += this->data[i][j]; } return b; } void * func(){ cout<<"Teste"<<endl; }

I am putting together a C handout and looking for a clear way to explain this operator to the reader, and I believe that this ... the %d and a format specifier that can be used to read or display a variable of type inteiro. What is operator meaning &?

I learned that the XOR operator works as or unique , i.e. the end result is only1 when only one of the operators is equal to ... ); if(left) return (pad + str).slice(-padSize); else return (str + pad).substring(0, padSize); }

I always found that the += operator only worked as a shorter form for the traditional increment, for example: i += j; Ins ... += j; compiles normally. Given this, is it possible to assert that i += j; is actually similar to i = (tipo do i) (i + j);?