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npm install vs. update - what's the difference?
... that an already installed module with fuzzy versioning ...
gets ignored by npm install
gets updated by npm update
Additionally: install and update by default handle devDependencies differently
npm install will install/update devDependencies unless --production flag is added
npm update will ig...
How to get the original value of an attribute in Rails
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Take a look in rails documentation
http://api.rubyonrails.org/classes/ActiveModel/Dirty.html
Model.attribute_was return previous value :D
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How I can delete in VIM all text from current line to end of file?
... imageUploader: {
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How to check if std::map contains a key without doing insert?
The only way I have found to check for duplicates is by inserting and checking the std::pair.second for false , but the problem is that this still inserts something if the key is unused, whereas what I want is a map.contains(key); function.
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How to write asynchronous functions for Node.js
...ing IO is better. The best way to understand it is to go watch some videos by ryan dahl.
How do I write asynchronous functions for Node?
Just write normal functions, the only difference is that they are not executed immediately but passed around as callbacks.
How should I implement error e...
Naming convention for Scala constants?
...style, camel case with first letter are upper case. It's laid down clearly by Odersky on Programming in Scala.
The style is also followed by the standard library, and has some support in language semantics: identifiers starting with upper case are treated as constants in pattern matching.
(Section...
Curly braces in string in PHP
...he var named $name: {${$name}}";
echo "This is the value of the var named by the return value of getName(): {${getName()}}";
echo "This is the value of the var named by the return value of \$object->getName(): {${$object->getName()}}";
// Won't work, outputs: This is the return value of get...
How do you append to an already existing string?
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How do you set the text in an NSTextField?
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Backbone.js: get current route
...acknowledgement in our codebase. ;P We tweaked it slightly for Marionette. By the way, as a shortcut, you can set the third parameter (sets the context) of the _.find function as this, thus eliminating the need for the Router variable (@DanAbramov did this already).
– Mark
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