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Questions - variable-assignment

Reassining variables

I was doing a test project just to train my Python and I stumbled upon something that I don't quite understand so I would appreciate if someone explained it to me. Below, I'm giving two similar Test s...
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Aleks K.

oop

variables

arguments

parameter-passing

variable-assignment

Votes: 0

Answers: 1

Latest Answer

I think I mostly answered my own question. Here's a bunch of tests that you can copy-paste and execute to see the difference: class Test: def __init__(self): self.test = "" ...
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Aleks K.

When splitting the assignment operation (n1,n2 = n2, n1+ n2 ) below, into n2 = n1+n2 and n1=n2 separately, the code doesn't work properly, why?

Guys I'm trying to print the first 8 elements of the Fibonacci sequence and just want to understand one piece of code. When performing an assignment operation in a single line (n1,n2 = n2, n1+ n2) the...
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Zohrab

python

variable-assignment

Votes: 0

Answers: 3

Latest Answer

If you change n2 before n1, then n1 changes to the new value of n2 not the original value, so they both have the same value. Similarly, changing n1 first would make the value of n2 incorrect. If you w...
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Lecdi

Typescript: Return a reference object that can be assigned to?

I have an existing set of classes that have a number of spots where they get, and one spot where they set, a named property from an array, i.e. return object[index]; // or object[index] = newValue; D...
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Trevortni

typescript

return-value

variable-assignment

Votes: 0

Answers: 1

Latest Answer

There is no sense of "reference values" built into JavaScript. Frameworks like Vue introduce their own concepts of refs which wrap a possibly-primitive value to track and propagate its "...
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Jeff Bowman

Understanding const reference in assignment when constructing object

Today I see this piece of code and I'm wondering to know what it is exactly doing this const reference in an assignment where a new object is created. (I don't know how to name this kind of assignment...
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cbuchart

c++

c++14

variable-assignment

const-reference

Votes: 0

Answers: 2

Latest Answer

From std::string::c_str's documentation, it returns: a pointer to an array that contains a null-terminated sequence of characters (i.e., a C-string) representing the current value of the string objec...
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Jason

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