Deep-copying in JavaScript

Re:Deep-copying in JavaScript by paulddraper on Thursday January 25, 2018 @03:40PM (#16234438)

> Nowadays, everything is pass-by-value.

Except for obscure, seldom-used languages like C++ and C#.

If you can write

    int a;
    ParseInt("123", a);
    Print(a); // print 123

your language has pass by reference.

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Re:Deep-copying in JavaScript by pjmlp on Thursday January 25, 2018 @03:46PM (#16234495)

I would add other unknown languages like Ada, D, VB.NET, Delphi, FreePascal, Rust.

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Re:Deep-copying in JavaScript by tomjakubowski on Thursday January 25, 2018 @05:59PM (#16235543)

Rust's references are ordinary values. Moreover, the GP's example wouldn't work in Rust; you'd need to pass a value of type &mut i32 to ParseInt to mutate the value.

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