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Limits of Nat type in Shapeless
... represents a way to encode natural numbers at a type level. This is used for example for fixed size lists. You can even do calculations on type level, e.g. append a list of N elements to a list of K elements and get back a list that is known at compile time to have N+K elements.
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How to install gem from GitHub source?
...tall the gem when running bundle install.
UPD. As indicated in comments, for Bundler to function properly you also need to add the following to config.ru:
require "bundler"
Bundler.setup(:default)
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How do I concatenate strings and variables in PowerShell?
...he question has been edited so much that the answer doesn't make sense anymore. In the slim shady example, yes "... $name ..." will work all the same, but in the original question for which this answer addresses, the question is how to access object properties. so if $name.id -eq 42 then "... $name....
Why does int num = Integer.getInteger(“123”) throw NullPointerException?
...ere is no property with the specified name, if the specified name is empty or null, or if the property does not have the correct numeric format, then null is returned.
In other words, this method has nothing to do with parsing a String to an int/Integer value, but rather, it has to do with System...
Turn off Chrome/Safari spell checking by HTML/css
Is there a way for a web developer to turn off Chrome/Safari/WebKit's spellchecking on particular input or textarea elements? I mean either by special tag attribute or a proprietary CSS instruction.
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Can't su to user jenkins after installing Jenkins
...I should have answered rather than linked to the answer in a comment.
if for some reason you want to login as jenkins, you can do so with:
sudo su -s /bin/bash jenkins
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Warning message: In `…` : invalid factor level, NA generated
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The warning message is because your "Type" variable was made a factor and "lunch" was not a defined level. Use the stringsAsFactors = FALSE flag when making your data frame to force "Type" to be a character.
> fixed <- data.frame("Type" = character(3), "Amount" = numeric(3))
> str(...
RegEx for matching UK Postcodes
...lex UK postcode only within an input string. All of the uncommon postcode forms must be covered as well as the usual. For instance:
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Making a request to a RESTful API using python
...ed using an implementation of Elasticsearch on an EC2 instance to index a corpus of content. I can query the search by running the following from my terminal (MacOSX):
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How to use a dot “.” to access members of dictionary?
...n use the Map object like another dictionary(including json serialization) or with the dot notation. I hope to help you:
class Map(dict):
"""
Example:
m = Map({'first_name': 'Eduardo'}, last_name='Pool', age=24, sports=['Soccer'])
"""
def __init__(self, *args, **kwargs):
...