[dart-misc] Conversions in Dart

[Raquel Moreno]

What's up guys? I need your help.

I know that Dart is dynamically typed and all that stuff, but I'm
wondering about how Dart works with narrowing conversion and widening
conversion. Or it simply doesn't work with it? I read a lot of links on the
internet and I dont conclude anything. Someone could light up my mind about
it?

Thanks

['Erik Ernst' via Dart Misc]

Post by Raquel Moreno
What's up guys? I need your help.
I know that Dart is dynamically typed and all that stuff, but I'm
wondering about how Dart works with narrowing conversion and widening
conversion. Or it simply doesn't work with it? I read a lot of links on the
internet and I dont conclude anything. Someone could light up my mind about
it?

The basic coercion mechanism is available as methods on the built-in
classes. For instance, `print(3.14.toInt())` prints "3". Check out pages
like https://api.dartlang.org/stable/dart-core/double-class.html for
related methods like `ceil`, `floor`, and `truncate`.

Thanks

Post by Raquel Moreno
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['Lasse R.H. Nielsen' via Dart Misc]

Post by Raquel Moreno
What's up guys? I need your help.
I know that Dart is dynamically typed and all that stuff, but I'm
wondering about how Dart works with narrowing conversion and widening
conversion.

Dart has no automatic conversions, neither narrowing, widening, or
otherwise.

Post by Raquel Moreno
Or it simply doesn't work with it? I read a lot of links on the internet
and I dont conclude anything. Someone could light up my mind about it?

Since Dart only has one integer type, a "bigint" that supports arbitrary
magnitude numbers, there is no need for narrowing or widening, nor is there
any type to narrow or widen to.

In Dart 2 that may change if it introduces fixed-sized integers.

/L
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Lasse R.H. Nielsen - ***@google.com
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