Hmmm I understand now, thank you all
Em segunda-feira, 18 de setembro de 2017 07:35:56 UTC-3, Elias Naur
escreveu:
>
> Just to expand on Ian's reply: you seem to want to have loadPage return
> any errors, similar to what ReaedFile does. If so, you need to declare
> loadPage to return two values, like so:
>
> func loadPage(title string) (*Page, error)
>
> And return a nil *Page and the error if ReadFile fails:
>
> body, err := ioutil.ReadFile(filename)
> if err != nil {
> return nil, err
> }
>
> The same goes for the sucess path:
>
> return &Page{Title: title, Body: body}, nil
>
> HTH,
> - elias
>
> On Monday, September 18, 2017 at 7:25:39 AM UTC+2, Ian Lance Taylor wrote:
>>
>> You are trying to assign the result of loadPage to two variables, but
>> loadPage only returns one result.
>>
>> In the "here is OK" section you are assigning the result of
>> ioutil.ReadFile to two variables. That is OK because ioutil.ReadFile
>> returns two results. You can see the definition of ioutil.ReadFile at
>> https://golang.org/src/io/ioutil/ioutil.go#L45 .
>>
>> Ian
>>
>>
>>
>> On Sun, Sep 17, 2017 at 8:00 PM, Ângelo Chida <aka....@gmail.com> wrote:
>>
>>> Hi, I'm new in Golang but I'm PHP StackDev since 10 years ago
>>> I'm following this tutorial https://golang.org/doc/articles/wiki/ on
>>> how to build a web app, but I'm stuck on some error and can't find anywhere
>>> a solution. Please help
>>> Take a look at the image
>>> My go version is 1.9
>>>
>>>
>>> <https://lh3.googleusercontent.com/-dLj3JRQea4g/Wb82fG86uaI/AAAAAAAAJ0Q/Uc9yZOWpHNc2cL4Da7XYRJzRQKyijY37QCLcBGAs/s1600/why.jpg>*sorry
>>>
>>> for poor english, it is not my native language
>>> <https://lh3.googleusercontent.com/-dLj3JRQea4g/Wb82fG86uaI/AAAAAAAAJ0Q/Uc9yZOWpHNc2cL4Da7XYRJzRQKyijY37QCLcBGAs/s1600/why.jpg>
>>>
>>>
>>>
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>>
>>
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