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How does a Breadth-First Search work when looking for Shortest Path?
...of the edges in a graph are unweighted (or the same weight) then the first time a node is visited is the shortest path to that node from the source node"
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Can Selenium interact with an existing browser session?
... It works for me except a duplicate dummy browser is raising each time.
– Pavel Vlasov
Jan 10 '18 at 18:56
I ...
Nginx 403 error: directory index of [folder] is forbidden
...lad to hear I am helpful. (Help others, in your known domain, in your free time, if possible, without expecting anything back)
– Manohar Reddy Poreddy
Sep 15 '15 at 7:39
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Can you explain the HttpURLConnection connection process?
...RLConnection with the URL object - A new
// connection is opened every time by calling the openConnection
// method of the protocol handler for this URL.
// 1. This is the point where the connection is opened.
HttpURLConnection connection = (HttpURLConnection) url
.openCo...
Example use of “continue” statement in Python?
...t be reproduced without it, although not having it can be expensive in run-time.
– Sparr
Jul 14 '14 at 15:27
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When should I use jQuery deferred's “then” method and when should I use the “pipe” method?
..., but I hope it illustrates the point.
Example 2
Consider Ajax calls. Sometimes you want to initiate one Ajax call after a previous one completes. One way is to make the second call inside a done callback:
$.ajax(...).done(function() {
// executed after first Ajax
$.ajax(...).done(function(...
Why does C++ not have reflection?
...work to add, and the C++ committee is fairly conservative, and don't spend time on radical new features unless they're sure it'll pay off. (A suggestion for adding a module system similar to .NET assemblies has been made, and while I think there's general consensus that it'd be nice to have, it's...
What is Rack middleware?
...r
def initialize(app)
@app = app
end
def call(env)
@start = Time.now
@status, @headers, @body = @app.call(env)
@duration = ((Time.now - @start).to_f * 1000).round(2)
puts "#{env['REQUEST_METHOD']} #{env['REQUEST_PATH']} - Took: #{@duration} ms"
[@status, @headers, @bo...
Updating packages in Emacs
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The conditional prevents refreshing every time I start emacs (I usually only want it to check when I tell it to). It only checks if there are no package archives, which should only be the case the first time I clone my config to a new machine.
–...
Right way to reverse pandas.DataFrame?
...lith Some libraries expect the data frame to be indexed. For example, some time series forecasting libraries expect an indexed frame as input so that it can model a time series while remaining agnostic to the time step (day, month, year, etc.). So you may be working with a data frame, do a transform...