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How do I get the path to the current script with Node.js?
...the module or included script. If you are writing a plugin which needs to know the path of the main script it is:
require.main.filename
or, to just get the folder name:
require('path').dirname(require.main.filename)
sha...
How to get index in Handlebars each helper?
...4811
The index of the current array item has been available for some time now via @index:
{{#each array}}
{{@index}}: {{this}}
{{/each}}
For object iteration, use @key instead:
{{#each object}}
{{@key}}: {{this}}
{{/each}}
...
Change key pair for ec2 instance
...ould do the trick for #5. And don't forget step 13. is probably rm ~/.ssh/known_hosts on boxes you've been connecting from.
– brandonscript
Apr 9 '14 at 6:38
...
Are braces necessary in one-line statements in JavaScript?
... !if
}
The thinking goes that if you always have the brackets then you know to insert other statements inside that block.
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Why doesn't 'ref' and 'out' support polymorphism?
...e, Giraffe, Turtle and Tiger, with the obvious subclassing relationships.
Now suppose you have a method void M(ref Mammal m). M can both read and write m.
Can you pass a variable of type Animal to M?
No. That variable could contain a Turtle, but M will assume that it contains only Mamma...
How do I make a list of data frames?
...me.
I didn't put my data in a list :( I will next time, but what can I do now?
If they're an odd assortment (which is unusual), you can simply assign them:
mylist <- list()
mylist[[1]] <- mtcars
mylist[[2]] <- data.frame(a = rnorm(50), b = runif(50))
...
If you have data frames named i...
@RequestBody and @ResponseBody annotations in Spring
... private String description;
// + getters, setters, constructor
}
Now if you have Jackson on your classpath (and have an <mvc:annotation-driven> setup), Spring would convert the incoming JSON to a UserStats object from the post body (because you added the @RequestBody annotation) and ...
Converting an array of objects to ActiveRecord::Relation
...e def self.subjects variety, scopes, etc) on this array. The only way I know to run class methods on a group of objects is to have them be an ActiveRecord::Relation. So I end up resorting to adding a to_indicators method to Array .
...
C# if/then directives for debug vs release
...
Thank you! I don't yet even know what "#defines" are so this is a great solution!
– Tim
Feb 8 '12 at 10:29
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Can JavaScript connect with MySQL?
...e if such libraries exist, but they are possible.
EDIT: Since writing, we now have MySQL Cluster:
The MySQL Cluster JavaScript Driver for Node.js is just what it sounds like it is – it’s a connector that can be called directly from your JavaScript code to read and write your data. As it acc...