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Why do I need to override the equals and hashCode methods in Java?
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Joshua Bloch says on Effective Java
You must override hashCode() in every class that overrides equals(). Failure to do so will result in a violation of the general contract for Object.hashCode(), which will prevent your class from functioning properly in conjunction with all...
Is it possible to use argsort in descending order?
Consider the following code:
9 Answers
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Illegal string offset Warning PHP
...uses illegal string offset error
You can see this in action here:
http://ideone.com/fMhmkR
For those who come to this question trying to translate the vagueness of the error into something to do about it, as I was.
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How to delete all the rows in a table using Eloquent?
...del::truncate();
That drops all rows from the table without logging individual row deletions.
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How to get a complete list of ticker symbols from Yahoo Finance? [closed]
... the list by iterating through the alphabetical groups:
AlphabeticIDIndexDownload dl1 = new AlphabeticIDIndexDownload();
dl1.Settings.TopIndex = null;
Response<AlphabeticIDIndexResult> resp1 = dl1.Download();
writeStream.WriteLine("Id|Isin|Name|Exchange|Type|I...
How can I return the current action in an ASP.NET MVC view?
... route data (controller, action) in your view even if the other answer provides more detail on how to get that data.
– tvanfosson
Apr 28 '16 at 12:34
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How to get values from IGrouping
...umerable<IGrouping<int, smth>> groups = list.GroupBy(x => x.id);
IEnumerable<smth> smths = groups.SelectMany(group => group);
List<smth> newList = smths.ToList();
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EF Code First foreign key without navigation property
...omething with your model or mapping a new migration will be added. If you didn't change anything force a new migration by using add-migration -IgnoreChanges SomeNewSchemaName. The migration will only contain empty Up and Down methods in this case.
Then you can modify the Up method by adding the fol...
wget/curl large file from google drive
...ce with something like
wget https://googledrive.com/host/LARGEPUBLICFOLDERID/index4phlat.tar.gz
Alternatively, you can use this script: https://github.com/circulosmeos/gdown.pl
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Change default primary key in Eloquent
...Yes
class User extends Eloquent {
protected $primaryKey = 'admin_id';
}
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