On Fri, Jun 24, 2016 at 2:54 PM, Val wrote:
> The playground caches everything, so running multiple times the same program
> will just serve the previously generated output.
Thanks, that's good to know! Makes a lot of sense too.
> Also in the playground everything is frozen at some point in the
On Friday, June 24, 2016 at 1:16:12 PM UTC-4, Joubin Houshyar wrote:
>
>
> On Friday, June 24, 2016 at 7:39:23 AM UTC-4, Konstantin Khomoutov wrote:
>>
>> On Fri, 24 Jun 2016 04:05:49 -0700 (PDT)
>> dc0d wrote:
>>
>> > To shuffle items in a slice I'm doing this:
>> >
>> > var res []Item
>>
On Friday, June 24, 2016 at 7:39:23 AM UTC-4, Konstantin Khomoutov wrote:
>
> On Fri, 24 Jun 2016 04:05:49 -0700 (PDT)
> dc0d > wrote:
>
> > To shuffle items in a slice I'm doing this:
> >
> > var res []Item
> >
> > //fill res logic
> >
> > shuffle := make(map[int]*Item)
> > for k, v := r
Thanks Val for explanation & clarification;
On Friday, June 24, 2016 at 5:24:30 PM UTC+4:30, Val wrote:
>
> The playground caches everything, so running multiple times the same
> program will just serve the previously generated output.
>
> Also in the playground everything is frozen at some point
On Fri, Jun 24, 2016 at 1:05 PM, dc0d wrote:
>
> Hi;
>
> To shuffle items in a slice I'm doing this:
>
> var res []Item
>
> //fill res logic
>
> shuffle := make(map[int]*Item)
> for k, v := range res {
> shuffle[k] = &v
> }
> res = nil
> for _, v := range shuffle {
> res = append(res, *v)
> }
>
The playground caches everything, so running multiple times the same
program will just serve the previously generated output.
Also in the playground everything is frozen at some point in the past : the
clock, the randomness sources, and you can't make outgoing requests to
import randomness from
Thanks Martin for the clarification!
Yet this inconsistent behavior is daunting. What version of Go is
playground using? x86? GopherJS? Better be something wrong with playground!
:)
On Fri, Jun 24, 2016 at 5:08 PM Martin Geisler wrote:
> On Fri, Jun 24, 2016 at 1:05 PM, dc0d wrote:
> >
> > Hi;
Please explain what other properties are you referring to?
I'm using this to choose from a list of tickets/tokens from database to
reduce contention (CouchDB). So being cryptographic is not a concern here
but rather being fast.
And if I'm not mistaken package rand uses a mutex internally - I th
map ranging randomization has to be fast - at the cost of the randomization
other properties. Use instead perhaps
https://golang.org/pkg/math/rand/#Rand.Perm to get a random slice of
indexes of a proper length. Later range that slice instead and indirectly
use the original slice item at the particu
On Fri, 24 Jun 2016 04:05:49 -0700 (PDT)
dc0d wrote:
> To shuffle items in a slice I'm doing this:
>
> var res []Item
>
> //fill res logic
>
> shuffle := make(map[int]*Item)
> for k, v := range res {
> shuffle[k] = &v
> }
> res = nil
> for _, v := range shuffle {
> res = append(res, *v)
> }
Hi;
To shuffle items in a slice I'm doing this:
var res []Item
//fill res logic
shuffle := make(map[int]*Item)
for k, v := range res {
shuffle[k] = &v
}
res = nil
for _, v := range shuffle {
res = append(res, *v)
}
Which inserts items into a map then ranges over that map. Ranging over a
map
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