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Detect current device with UI_USER_INTERFACE_IDIOM() in Swift
...estFlight. Strangely, it works when the app is uploaded directly to device from X-Code. I've also hit this bug.
– Zmey
May 31 '15 at 7:55
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What does bundle exec rake mean?
... command to execute a script in the context of the current bundle (the one from your directory's Gemfile). rake db:migrate is the script where db is the namespace and migrate is the task name defined.
So bundle exec rake db:migrate executes the rake script with the command db:migrate in the context...
Flask-SQLalchemy update a row's information
...odel. Pickled attributes should be replaced in order to trigger updates:
from flask import Flask
from flask.ext.sqlalchemy import SQLAlchemy
from pprint import pprint
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqllite:////tmp/users.db'
db = SQLAlchemy(app)
class User(db.Mode...
What does the “assert” keyword do? [duplicate]
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should we remove code containing assert from production code ?
– Qbik
Jul 4 '16 at 15:48
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if else in a list comprehension [duplicate]
...ep certain elements (ie: you do not necessarily want an entry to the array from every iteration) then you need to put the condition at the end.
– Sam Creamer
Aug 29 '19 at 17:35
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SyntaxError: Use of const in strict mode
...st stable NodeJS version
sudo n stable
Update nodejs instructions taken from, https://stackoverflow.com/a/19584407/698072
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Why is not in HTML 5 Tag list while is?
... quite cut it. Tags such as <center> or <font> used to be (and from what I can tell, still are) much more popular than <small>. Yet, they have been declared as deprecated.
– ЯegDwight
Feb 14 '10 at 3:36
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ArrayList vs List in C#
...class. It supports storing values of a specific type without casting to or from object (which would have incurred boxing/unboxing overhead when T is a value type in the ArrayList case). ArrayList simply stores object references. As a generic collection, List<T> implements the generic IEnumerab...
how to use javascript Object.defineProperty
...last but one line: the responsibility for correct discount value was moved from the client code (e-shop definition) to the product definition. The product is responsible for keeping its data members consistent. Good design is (roughly said) if the code works the same way as our thoughts.
So much ab...
Implications of foldr vs. foldl (or foldl')
...st element (which, in the example above, would itself be an infinite list, from INF down to 1).
– Will Ness
Mar 24 '17 at 7:37
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