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How do I prevent site scraping? [closed]
...s to know how these scrapers work, and
, by extension, what prevents them from working well.
There's various types of scraper, and each works differently:
Spiders, such as Google's bot or website copiers like HTtrack, which recursively follow links to other pages in order to get data. These are ...
How to serve static files in Flask
...l be able to do it more efficiently than Flask.
However, you can use send_from_directory to send files from a directory, which can be pretty convenient in some situations:
from flask import Flask, request, send_from_directory
# set the project root directory as the static folder, you can set othe...
How to stop C# console applications from closing automatically? [duplicate]
... the output before the console window closes. When the application is used from the command line no pause is needed, as the console window does not close after a command has finished.
– Jeppe Stig Nielsen
Aug 5 '14 at 21:36
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Why is std::map implemented as a red-black tree?
...Black trees are used in most collection libraries, including the offerings from Java and Microsoft .NET Framework.
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Double decimal formatting in Java
...ause of the default language used by your JVM, which is probably different from those of Nambari. Have a look at NumberFormat javadoc : docs.oracle.com/javase/1.4.2/docs/api/java/text/…
– Michael Zilbermann
Oct 9 '12 at 18:54
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Options for initializing a string array [duplicate]
...[] myString = new string[4];
myString[0] = "string1"; // etc.
Advanced:
From a List
list<string> = new list<string>();
//... read this in from somewhere
string[] myString = list.ToArray();
From StringCollection
StringCollection sc = new StringCollection();
/// read in from file o...
How to get distinct values from an array of objects in JavaScript?
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for typescript you have to use new Set wrapped in Array.from()... i will provide that answer below. @AngJobs
– Christian Matthew
Aug 25 '17 at 16:24
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Converting unix timestamp string to readable date
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Use datetime module:
from datetime import datetime
ts = int("1284101485")
# if you encounter a "year is out of range" error the timestamp
# may be in milliseconds, try `ts /= 1000` in that case
print(datetime.utcfromtimestamp(ts).strftime('%Y-%m...
How to run a hello.js file in Node.js on windows?
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@Mitul - Right, this is the detail that was missing from your description -- i.e. how you were starting node -- that was preventing others from helping you. Starting node with no arguments drops you into the REPL. This is an environment for interactively executing javascript. ...
What is the difference between map and flatMap and a good use case for each?
...rms an RDD of length N into another RDD of length N.
For example, it maps from two lines into two line-lengths:
rdd.map(_.length).collect
res1: Array[Int] = Array(13, 16)
But flatMap (loosely speaking) transforms an RDD of length N into a collection of N collections, then flattens these int...