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iPhone: Detecting user inactivity/idle time since last screen touch
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Hi Mike, My AppDelegate is inherting from NSObject So changed it UIApplication and Implement above methods to detect user becoming idle but i am getting error "Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'There can only ...
Best practice for Python assert
...wn Exception classes.
For example, if you're writing a function to read from a configuration file into a dict, improper formatting in the file should raise a ConfigurationSyntaxError, while you can assert that you're not about to return None.
In your example, if x is a value set via a user int...
What are the key differences between Apache Thrift, Google Protocol Buffers, MessagePack, ASN.1 and
... tutorials available as well.
Thrift is not a standard. It is originally from Facebook and was later open-sourced and is currently a top level Apache project. It is not well-documented -- especially tutorial levels -- and to my (admittedly brief) glance doesn't appear to add anything that other, ...
How to make lists contain only distinct element in Python? [duplicate]
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@Ant Dictionary key order is preserved from Python 3.6, but it says "the order-preserving aspect of this new implementation is considered an implementation detail and should not be relied upon". Since they're both based on hashes, I'd think set would be the same, ...
Type definition in object literal in TypeScript
...de Pattern as Alternative)
After many years of using const and benefiting from more functional code, I would recommend against using the below in most cases. (When building objects, forcing the type system into a specific type instead of letting it infer types is often an indication that something ...
What does $@ mean in a shell script?
...er enclosed in double quotes, allowing to take parameters with blank space from the caller and pass them on.
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Python Selenium accessing HTML source
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You need to access the page_source property:
from selenium import webdriver
browser = webdriver.Firefox()
browser.get("http://example.com")
html_source = browser.page_source
if "whatever" in html_source:
# do something
else:
# do something else
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How to remove a field completely from a MongoDB document?
Suppose this is a document. How do I remove " words " completely from all the documents in this collection? I want all documents to be without " words ":
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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...
How to install a plugin in Jenkins manually
Installing a plugin from the Update center results in:
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