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What's the difference between `=` and `

I'm using R 2.8.1 and it is possible to use both = and <- as variable assignment operators. What's the difference between them? Which one should I use? ...
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What does the smiley face “:)” mean in CSS?

... From an article at javascriptkit.com, that's applied for IE 7 and earlier versions: if you add a non-alphanumeric character such as an asterisk (*) immediately before a property name, the property will be applied in IE and not in other browsers. Also there's a hack for <= IE 8:...
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Biggest differences of Thrift vs Protocol Buffers?

What are the biggest pros and cons of Apache Thrift vs Google's Protocol Buffers ? 15 Answers ...
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Difference between repository and service?

What's the difference between a repository and a service? I don't seem to grasp it. 3 Answers ...
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ExecJS and could not find a JavaScript runtime

I'm trying to use the Mongoid / Devise Rails 3.1 template ( Mongoid and Devise ), and I keep getting an error stating ExecJS cannot find a JavaScript runtime. Fair enough when I didn't have any installed, but I've tried installing Node.js , Mustang and the Ruby Racer , but nothing is work...
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How do I do a multi-line string in node.js?

... node v4 and current versions of node As of ES6 (and so versions of Node greater than v4), a new "template literal" intrinsic type was added to Javascript (denoted by back-ticks "`") which can also be used to construct multi-line str...
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String concatenation vs. string substitution in Python

In Python, the where and when of using string concatenation versus string substitution eludes me. As the string concatenation has seen large boosts in performance, is this (becoming more) a stylistic decision rather than a practical one? ...
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How to prompt for user input and read command-line arguments [closed]

How do I have a Python script that a) can accept user input and how do I make it b) read in arguments if run from the command line? ...
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What is the difference between association, aggregation and composition?

What is the difference between association, aggregation, and composition? Please explain in terms of implementation. 19 An...
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Maximum execution time in phpMyadmin

... You can use code formatting to make it clear what is code and what is not as well :) – span Dec 13 '12 at 11:07 26 ...