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what is “strict mode” and how is it used?

I've been looking over the JavaScript reference on the Mozilla Developer Network, and I came across something called "strict mode" . I read it over and I'm having trouble understanding what it does. Can someone briefly explain (in general) what its purpose is and how it is useful? ...
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Primary key or Unique index?

At work we have a big database with unique indexes instead of primary keys and all works fine. 15 Answers ...
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What are the advantages of using a schema-free database like MongoDB compared to a relational databa

I'm used to using relational databases like MySQL or PostgreSQL, and combined with MVC frameworks such as Symfony, RoR or Django, and I think it works great. ...
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RabbitMQ and relationship between channel and connection

The RabbitMQ Java client has the following concepts: 4 Answers 4 ...
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Modulo operation with negative numbers

In a C program i was trying the below operations(Just to check the behavior ) 12 Answers ...
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What is move semantics?

I just finished listening to the Software Engineering radio podcast interview with Scott Meyers regarding C++0x . Most of the new features made sense to me, and I am actually excited about C++0x now, with the exception of one. I still don't get move semantics ... What is it exactly? ...
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PUT vs. POST in REST

According to the HTTP/1.1 Spec: 34 Answers 34 ...
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Why should I use a pointer rather than the object itself?

I'm coming from a Java background and have started working with objects in C++. But one thing that occurred to me is that people often use pointers to objects rather than the objects themselves, for example this declaration: ...
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What is the difference between NULL, '\0' and 0?

In C, there appear to be differences between various values of zero -- NULL , NUL and 0 . 11 Answers ...
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Should an Enum start with a 0 or a 1?

Imagine I have defined the following Enum: 14 Answers 14 ...