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Mediator Vs Observer Object-Oriented Design Patterns
...t of objects interact. Mediator promotes loose coupling by keeping objects from referring to each other explicitly, and it lets you vary their interaction independently.
Source: dofactory
Example:
The observer pattern:
Class A, can have zero or more observers of type O registered with it. When s...
New features in java 7
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Java SE 7 Features and Enhancements from JDK 7 Release Notes
This is the Java 7 new features summary from the OpenJDK 7 features page:
vm JSR 292: Support for dynamically-typed languages (InvokeDynamic)
Strict class-file checking
lang JSR 334: S...
Import CSV to mysql table
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Instead of writing a script to pull in information from a CSV file, you can link MYSQL directly to it and upload the information using the following SQL syntax.
To import an Excel file into MySQL, first export it as a CSV file. Remove the CSV headers from the generated CSV f...
Xcode without Storyboard and ARC
...nd ARC then
STEPS FOR REMOVE STORY BOARD
1) Remove Main.storyboard file from your project.
2) Add new files with xib for your controller , if it is not added in compiled sources in build phases then add there manually.
3) Remove Main storyboard file base name from plist.
4) Change appdelegate ...
Fastest way to convert JavaScript NodeList to Array?
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With ES6, we now have a simple way to create an Array from a NodeList: the Array.from() function.
// nl is a NodeList
let myArray = Array.from(nl)
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Microsoft CDN for jQuery or Google CDN? [closed]
...).
Important Note: If you're building an intranet application, stay away from the CDN approach. It doesn't matter who's hosting it, unless you're on a very overloaded server internally, no CDN will give you more performance than local 100mb/1GB ethernet will. If you use a CDN for a strictly inte...
Maven: Non-resolvable parent POM
...anks I tried it for a while to solve the problem. I took the relative path from ../pom.xml to ../<parent folder>/pom.xml.
– Mario Kurzweil
Feb 4 '17 at 19:36
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Can someone explain the traverse function in Haskell?
I am trying and failing to grok the traverse function from Data.Traversable . I am unable to see its point. Since I come from an imperative background, can someone please explain it to me in terms of an imperative loop? Pseudo-code would be much appreciated. Thanks.
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How to validate an Email in PHP?
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Stay away from regex and filter_var() solutions for validating email. See this answer: https://stackoverflow.com/a/42037557/953833
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Get Maven artifact version at runtime
... sadly not every classloader does seem to load these properties from the manifest file (I remember having problems with Tomcat in exactly this case).
– dwegener
Dec 15 '12 at 14:17
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