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How to empty a Heroku database
...:setup doesn't work with Rails 4, it fails with a Couldn't create database error.
Edit 2014-10-09: You can use rake db:setup with Rails 4. It does give you a Couldn't create database error (because the database was already created using the heroku pg:reset command). But it also loads your database ...
Using global variables between files?
... Thanks. Any idea how to remove the “Undefined variable from import” errors that appear in Eclipse PyDev by using this file structure (i.e. importing global variables from settings.py)? I had to disable the error in PyDev, which is not ideal.
– Franck Dernoncourt
...
System.BadImageFormatException: Could not load file or assembly [duplicate]
...4 and it works on my computer. Here in server where is win 2008 i get this error.
5 Answers
...
Double exclamation points? [duplicate]
... its result.
maybe, since Boolean conversion in JavaScript is surprisingly error-prone (in that e.g. new Boolean(false) is a true-valued value), the person who wrote the function feels that it should always be done explicitly rather than implicitly — even though the effect is the same — just to ...
Can't compile project when I'm using Lombok under IntelliJ IDEA
...n Build -> Rebuild Project to have annotations recognized and eliminate errors.
For IDEA 2019.2.1, depending on how the project is configured, installing the Project Lombok plugin may not be sufficient. Here is another way to use Project Lombok with IntelliJ IDEA:
Visit https://projectlombok...
How to convert image to byte array
...e repeatable, or at least after a couple times of converting, strange GDI+ errors start to occur. The ImageConverter solution found below seems to avoid these errors.
– Dave Cousineau
Apr 21 '17 at 22:43
...
How can I extend typed Arrays in Swift?
...core }
}
}
Trying to do this with a struct or typealias will give an error:
Type 'Element' constrained to a non-protocol type 'HighScoreEntry'
Update:
To extend typed arrays with non-classes use the following approach:
typealias HighScoreEntry = (Int)
extension SequenceType where Genera...
Difference between sh and bash
...to),
#!/bin/bash
will use /bin/bash if it's available (and fail with an error message if it's not). Of course, you can also specify another implementation, e.g.
#!/bin/dash
Which one to use
For my own scripts, I prefer sh for the following reasons:
it is standardized
it is much simpler and ...
must appear in the GROUP BY clause or be used in an aggregate function
...pain is 5 and for canada the best result is 2. It is true, and there is no error.
If we need to display wmname also, we have to answer the question: "What is the RULE to choose wmname from resulting set?" Let's change the input data a bit to clarify the mistake:
cname | wmname | avg ...
How to send an email from JavaScript
... subject: _subject,
text: _message
}
}, function(error, response){
if (error) console.log( error );
else console.log(response);
});
}
// define your own email api which points to your server.
app.post( '/api/sendemail/', function(req, res){
var _n...