## digitalmars.D.learn - How to get array length

• kaz (3/3) May 22 2014 Is there a way to get the length of an array out of slice bracket
```Is there a way to get the length of an array out of slice bracket
in D?

Tks.
```
May 22 2014
```On Thursday, 22 May 2014 at 23:22:44 UTC, kaz wrote:
Is there a way to get the length of an array out of slice
bracket in D?

Tks.

Just use .length:

void main()
{
import std.stdio;
auto a = new int[5];
auto b = a[];
writeln(a.length, " ", b.length);
}
```
May 22 2014
```On Thursday, 22 May 2014 at 23:24:30 UTC, Brad Anderson wrote:
On Thursday, 22 May 2014 at 23:22:44 UTC, kaz wrote:
Is there a way to get the length of an array out of slice
bracket in D?

Tks.

Just use .length:

void main()
{
import std.stdio;
auto a = new int[5];
auto b = a[];
writeln(a.length, " ", b.length);
}

Tks.
```
May 24 2014
=?UTF-8?B?QWxpIMOHZWhyZWxp?= <acehreli yahoo.com> writes:
```On 05/22/2014 04:22 PM, kaz wrote:
Is there a way to get the length of an array out of slice bracket in D?

Tks.

If you mean the length of the original array, no. Of course, the length
of the slice is trivial: slice.length.

The following article explains how slices don't know about other slices
(including the original array):

http://dlang.org/d-array-article.html

Ali
```
May 22 2014
```On Thursday, 22 May 2014 at 23:26:02 UTC, Ali Çehreli wrote:
On 05/22/2014 04:22 PM, kaz wrote:
Is there a way to get the length of an array out of slice
bracket in D?

Tks.

If you mean the length of the original array, no. Of course,
the length of the slice is trivial: slice.length.

The following article explains how slices don't know about
other slices (including the original array):

http://dlang.org/d-array-article.html

Ali

Tks.
```
May 24 2014
"Rene Zwanenburg" <renezwanenburg gmail.com> writes:
```On Sunday, 25 May 2014 at 06:50:14 UTC, kaz wrote:
On Thursday, 22 May 2014 at 23:26:02 UTC, Ali Çehreli wrote:
On 05/22/2014 04:22 PM, kaz wrote:
Is there a way to get the length of an array out of slice
bracket in D?

Tks.

If you mean the length of the original array, no. Of course,
the length of the slice is trivial: slice.length.

The following article explains how slices don't know about
other slices (including the original array):

http://dlang.org/d-array-article.html

Ali

Tks.

Also, when slicing, you can use the dollar operator to get the
length of a slice:

auto arr = [1, 2, 3, 4];
auto slice = arr[\$/2 .. \$]; // the last half of the array, [3, 4]
```
May 25 2014