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Purge or recreate a Ruby on Rails database
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I know two ways to do this:
This will reset your database and reload your current schema with all:
rake db:reset db:migrate
This will destroy your db and then create it and then migrate your current schema:
rake db:drop db:...
JavaScript blob filename without link
...actually mount the a tag to the body in order for this to work (tried just now in Chrome)
– beyond-code
Aug 12 '19 at 10:37
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show 13 more c...
Xcode iOS 8 Keyboard types not supported
I have a UITextField Ctrl-dragged as an @Outlet in my .swift class.
Now in viewDidLoad i'm using this code
10 Answe...
JSON serialization of Google App Engine models
...([(p, unicode(getattr(self, p))) for p in self.properties()])
SimpleJSON now works properly:
class Photo(DictModel):
filename = db.StringProperty()
title = db.StringProperty()
description = db.StringProperty(multiline=True)
date_taken = db.DateTimeProperty()
date_uploaded = db.Date...
jQuery callback for multiple ajax calls
...the following will work or if you need to have your ajax calls fired at unknown times as shown here with two buttons: fired after both buttons are clicked
[usage]
for single callback once complete: Working Example
// initialize here
var requestCallback = new MyRequestsCompleted({
numRequest: ...
How to do a FULL OUTER JOIN in MySQL?
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and I see now that you say that yourself, sorry. Perhaps you could update your answer, given there is this case that it gets wrong and that the UNION ALL is always going to be more efficient?
– ysth
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Pad a number with leading zeros in JavaScript [duplicate]
...(str.length < length)
str = padString + str;
return str;
}
Now test:
var str = "5";
alert(str.lpad("0", 4)); //result "0005"
var str = "10"; // note this is string type
alert(str.lpad("0", 4)); //result "0010"
DEMO
In ECMAScript 8 , we have new method padStart and padEnd which ha...
JavaScript equivalent of PHP's in_array()
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There is now Array.prototype.includes:
The includes() method determines whether an array includes a certain
element, returning true or false as appropriate.
var a = [1, 2, 3];
a.includes(2); // true
a.includes(4); // false
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How do I check for C++11 support?
...ler
#endif
It is set to 199711L in Visual Studio 2010 SP1, but I do not know if vendors will be so bold to increase it already if they just have (partial) compiler-level support versus a standard C++ library with all the C++11 changes.
So Boost's defines mentioned in another answer remain the onl...
How to prevent open last projects when intellij idea start
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In 14 this is now in Settings -> Appearance & Behavior -> System Settings. Or you can use the search functionality to find it easier.
– Java Devil
May 12 '15 at 23:39
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