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I am trying to check if a specific element is included in an output. I run:
results.include? {"_id"=>{"car_id"=>44, "page"=>"5"}, "summarized_time"=>100}
but I get an error:
Syntax error, unexpected =>, expecting '}'
What did I do wrong?
The problem is that the curly brackets in this case are interpreted as start of a block. Just put () around:
results.include?({"_id"=>{"car_id"=>44, "page"=>"5"}, "summarized_time"=>100})
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As the title say, I have a code like this:
//if i don't use this line r.postform() don't works and return absolute nothing.
//html form works correctly
// I don't need to call r.PostFormValue for every key, just one
fmt.Println(r.PostFormValue("oldpass"))
if r.PostForm.Has("oldpass") && r.PostForm.Has("newpass1") && r.PostForm.Has("newpass2")
{ //if i don't call r.PostFormValue() the program stop before the if }
}
Make no sense to me... Also I remember to have used it without in the past, so I don't think it depend on parsing the value... What could be?
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I typed my first code in rust. The helloworld. But I got an error when I tried to run it.
fn main() {
println!("Hello world");
}
I tried to run using './hellworld.rs'
But it showed,
syntax error near unexpected token `('
`fn main() {'
I was using powershell. But used the wrong command ./helloworld.rs
Instead I tried ./helloworld and ./helloworld.exe. Both worked.
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I would like to delete the word blob from phrase $CHANGEDSITE. but my code isn't working. Any suggestions?
#!/bin/bash
OLD=$1 ex. https://github.com/retep-mathwizard/imitate/blob/master/bjqx
NEW=raw.githubusercontent.com
CHANGEDSITE="${OLD/github.com/$NEW}"
REMOVEDBLOB="${CHANGESITE/blob/}"
echo $REMOVEDBLOB
Forgot a D in my variable, So CHANGESITE was nothing , hence the output being nothing
You can use sed
OLD=https://github.com/retep-mathwizard/imitate/blob/master/bjqx
echo $OLD | sed 's/github.com/raw\.githubusercontent\.com/g' | sed 's/blob\///g'
The First sed change the url and the second remove the word blob/
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I'm following the ruby on rails guide written by Micheal Harl. I"m wondering what ?('').?.? means in the code below.
def string_shuffle(s)
s.?('').?.?
end
string_shuffle("foobar")
# => "oobfra"
I think it should be replaced with methods, like bellow:
def string_shuffle(s)
s.split('').shuffle.join
end
def string_shuffle(s)
s.split('').shuffle.join
end
string_shuffle("foobar")
# => "oafrob"
It doesn't mean anything. It's a syntax error. That code is not legal Ruby.
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I am trying to convert the string "country." to a symbol. I expect to receive :country. including the point ..
I tried the following, but they do not work as my symbols still have quotes.
"country.".to_sym; #=> :"country."
"country.".intern; #=> :"country."
"country.".parameterize.underscore.to_sym; #=> :country
"country\.".to_sym; #=> :"country."
It's working as expected.
A symbol most of the time looks like:
:symbol_name
However when the symbol contains special characters such as spaces or hyphens, or in your case a period, it needs to be enclosed in quotes:
:"symbol name with-many special characters."
Although it doesn't look 'correct', it will act as any other symbol.
perhaps it will help you:
:'country.'