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What is the difference between `let` and `var` in swift?
... names, including Unicode characters:
let ???????? = "dogcow"
Excerpts From: Apple Inc. “The Swift Programming Language.” iBooks. https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewBook?id=881256329
EDIT
Because comments asking for adding other facts to the answer, converting this to c...
Hibernate: Automatically creating/updating the db tables based on entity classes
...
You might try changing this line in your persistence.xml from
<property name="hbm2ddl.auto" value="create"/>
to:
<property name="hibernate.hbm2ddl.auto" value="update"/>
This is supposed to maintain the schema to follow any changes you make to the Model each time ...
ASP.NET WebApi vs MVC ? [closed]
...ilters, routing and others MVC
features exist in Web API are different from MVC and exists in the
new System.Web.Http assembly. In MVC, these featues exist with in
System.Web.Mvc. Hence Web API can also be used with Asp.Net and as a
stand alone service layer.
6. You can mix Web API ...
Duplicate log output when using Python logging module
...
I had figured out that the doubled logging was from RootLogger and my StreamHandler, but couldn't resolve the issue (while keeping my formatter on the StreamHandler) until doing this.
– Xander YzWich
Nov 19 '19 at 18:37
...
What does 'predicate' mean in the context of computer science? [duplicate]
...
It is a term most commonly used in the field of Mathematical Logic.
From wikipedia
In mathematics, a predicate is either a relation or the boolean-valued function that amounts to the characteristic function or the indicator function of such a relation.
A function P: X→ {true, false} is cal...
Warning: “format not a string literal and no format arguments”
...ay the C language works, it's going to pick up some random garbage pointer from the stack and try to treat it like an NSString. This will most likely crash your program. Now your strings probably don't have %@'s in them, but some day they might. You should always use a format string with data you ex...
How to get request URI without context path?
...and other oddities. Various Spring code does getContextPath and removes it from the URI just as you have done instead of getPathInfo.
– Adam Gent
Jan 3 '12 at 14:23
add a comm...
initialize a numpy array
... know how big the array will end up being. For example, when reading data from a file or another process. It isn't really as awful as it may seem at first since python and numpy are pretty clever.
– travc
Feb 9 '13 at 22:55
...
XmlSerializer - There was an error reflecting type
...rty it is having trouble serializing.
You can exclude fields/properties from xml serialization by decorating them with the [XmlIgnore] attribute.
XmlSerializer does not use the [Serializable] attribute, so I doubt that is the problem.
...
Foreign key constraints: When to use ON UPDATE and ON DELETE
...We'll take an example, a company table with a user table containing people from theses company
CREATE TABLE COMPANY (
company_id INT NOT NULL,
company_name VARCHAR(50),
PRIMARY KEY (company_id)
) ENGINE=INNODB;
CREATE TABLE USER (
user_id INT,
user_name VARCHAR(50),
...