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Difference between string and text in rails?

I'm making a new web app using Rails, and was wondering, what's the difference between string and text ? And when should each be used? ...
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What difference is there between WebClient and HTTPWebRequest classes in .NET?

...FtpWebRequest, depend on your request. Below is an example: Example: var _request = (HttpWebRequest)WebRequest.Create("http://stackverflow.com"); var _response = (HttpWebResponse)_request.GetResponse(); WebClient System.Object System.MarshalByRefObject System.ComponentModel....
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Node.js Mongoose.js string to ObjectId function

...n it is saved from a string, mongo tells me it is still just a string. The _id of the object, for instance, is displayed as objectId("blah") . ...
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How to check Django version

... is as an executable command: $ python -c "import django; print(django.get_version())" 2.0 share | improve this answer | follow | ...
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How do I improve ASP.NET MVC application performance?

How do you improve your ASP.NET MVC application performance? 19 Answers 19 ...
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How to pull a random record using Django's ORM?

... Using order_by('?') will kill the db server on the second day in production. A better way is something like what is described in Getting a random row from a relational database. from django.db.models.aggregates import Count from random...
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file_get_contents(“php://input”) or $HTTP_RAW_POST_DATA, which one is better to get the body of JSON

file_get_contents("php://input") or $HTTP_RAW_POST_DATA - which one is better to get the body of JSON request? 6 Answers...
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SQL Server: Filter output of sp_who2

Under SQL Server, is there an easy way to filter the output of sp_who2? Say I wanted to just show rows for a certain database, for example. ...
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Among $_REQUEST, $_GET and $_POST which one is the fastest?

... $_REQUEST, by default, contains the contents of $_GET, $_POST and $_COOKIE. But it's only a default, which depends on variables_order ; and not sure you want to work with cookies. If I had to choose, I would probably not us...
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How to check if a file exists in Go?

...doesn't exist, equivalent to Python's if not os.path.exists(filename): if _, err := os.Stat("/path/to/whatever"); os.IsNotExist(err) { // path/to/whatever does not exist } To check if a file exists, equivalent to Python's if os.path.exists(filename): Edited: per recent comments if _, err := o...