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How to pass command line arguments to a rake task
...ays:
namespace :thing do
desc "it does a thing"
task :work, [:option, :foo, :bar] do |task, args|
puts "work", args
end
task :another, [:option, :foo, :bar] do |task, args|
puts "another #{args}"
Rake::Task["thing:work"].invoke(args[:option], args[:foo], args[:bar])
# or s...
Dynamically access object property using variable
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You inspired me to create an enhanced version that allows bracket notation & property names with spaces as well as validating the inputs: it.knightnet.org.uk/kb/node-js/get-properties
– Julian Knight
Jan 3 '19 at 14:04
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List attributes of an object
...ict__
Then you can test what type is with type() or if is a method with callable().
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Live-stream video from one android phone to another over WiFi
...elopers for sample code, stackoverflow, google, android blogs but nothing. All I can find are some sort of phone-to-desktop or desktop-to-phone solutions for streaming, but nothing that I can borrow in my implementation.
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Sorting object property by values
...ou like, thus achieving exactly what you set out to do. That would work in all the browsers I know of, but it would be dependent on an implementation quirk, and could break at any time. You should never make assumptions about the order of elements in a JavaScript object.
var objSorted = {}
sortable....
How to print time in format: 2009‐08‐10 18:17:54.811
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Superb answer. I could do all sorts of things in PHP, but knew it was all there already in C. THanks.
– Vijay Kumar Kanta
Jan 23 '14 at 12:43
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Accessing private member variables from prototype-defined functions
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No, there's no way to do it. That would essentially be scoping in reverse.
Methods defined inside the constructor have access to private variables because all functions have access to the scope in which they were defined.
Methods defined on a prototype are not defin...
Autoreload of modules in IPython [duplicate]
Is there a way to have IPython automatically reload all changed code? Either before each line is executed in the shell or failing that when it is specifically requested to. I'm doing a lot of exploratory programming using IPython and SciPy and it's quite a pain to have to manually reload each module...
Finding Variable Type in JavaScript
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Use typeof:
> typeof "foo"
"string"
> typeof true
"boolean"
> typeof 42
"number"
So you can do:
if(typeof bar === 'number') {
//whatever
}
Be careful though if you define these primitives with their object wrappers (which you should ...
jQuery or CSS selector to select all IDs that start with some string [duplicate]
How can I select all elements whose id starts with "player_"?
4 Answers
4
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