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Handling warning for possible multiple enumeration of IEnumerable

... The problem with taking IEnumerable as a parameter is that it tells callers "I wish to enumerate this". It doesn't tell them how many times you wish to enumerate. I can change the objects parameter to be List and then avoid the possi...
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PHP parse/syntax errors; and how to solve them

...nto syntax errors. Even experienced programmers make typos. For newcomers, it's just part of the learning process. However, it's often easy to interpret error messages such as: ...
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Foreign Key naming scheme

I'm just getting started working with foreign keys for the first time and I'm wondering if there's a standard naming scheme to use for them? ...
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How to think in data stores instead of databases?

...es anybody have any tips for using Google Datastore instead of databases? It seems I've trained my mind to think 100% in object relationships that map directly to table structures, and now it's hard to see anything differently. I can understand some of the benefits of Google Datastore (e.g. perfor...
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Does Python have a package/module management system?

... Recent progress March 2014: Good news! Python 3.4 ships with Pip. Pip has long been Python's de-facto standard package manager. You can install a package like this: pip install httpie Wahey! This is the best feature of any Python release. It makes the community's wealth of libra...
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What is the difference between JDK and JRE?

... The JRE is the Java Runtime Environment. It is a package of everything necessary to run a compiled Java program, including the Java Virtual Machine (JVM), the Java Class Library, the java command, and other infrastructure. However, it cannot be used to create new pr...
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How to set the first option on a select box using jQuery?

...follow | edited May 19 '16 at 13:52 answered Sep 16 '11 at 13:46 ...
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Git workflow and rebase vs merge questions

I've been using Git now for a couple of months on a project with one other developer. I have several years of experience with SVN , so I guess I bring a lot of baggage to the relationship. ...
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Django: “projects” vs “apps”

...py startproject myproduct cd myproduct mkdir myproduct touch myproduct/__init__.py touch myproduct/models.py touch myproduct/views.py and so on. Would it help if I said views.py doesn't have to be called views.py? Provided you can name, on the python path, a function (usually package.package.views...
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WebSockets vs. Server-Sent events/EventSource

...E connections can only push data to the browser. Online stock quotes, or twitters updating timeline or feed are good examples of an application that could benefit from SSE. In practice since everything that can be done with SSE can also be done with Websockets, Websockets is getting a lot more atte...