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Is there a “not equal” operator in Python?
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Use !=. See comparison operators. For comparing object identities, you can use the keyword is and its negation is not.
e.g.
1 == 1 # -> True
1 != 1 # -> False
[] is [] #-> False (distinct objects)
a = b = []; a is b # -> True (same object...
How do I check for a network connection?
What is the best way to determine if there is a network connection available?
4 Answers
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JavaScript: Is there a way to get Chrome to break on all errors?
I am looking for an equivalent in Chrome to the "break on all errors" functionality of Firebug. In the Scripts tab, Chrome has a "pause on all exceptions", but this is not quite the same as breaking on all errors.
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When to catch java.lang.Error?
In what situations should one catch java.lang.Error on an application?
16 Answers
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Send JSON data via POST (ajax) and receive json response from Controller (MVC)
...n this case an mvc controller function) should NEVER trust a client, therefore the XSS check should be done at the server. The controller is responsible for parsing the data in the correct way and send the data back to the caller (webapp). The caller could also be something like fiddler, or postman,...
How to make execution pause, sleep, wait for X seconds in R?
How do you pause an R script for a specified number of seconds or miliseconds? In many languages, there is a sleep function, but ?sleep references a data set. And ?pause and ?wait don't exist.
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Create a variable name with “paste” in R?
...wered Apr 1 '11 at 8:54
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How to escape quote marks in Exec Command in MSBuild
I'm trying to build an MSBuild script that maps a network drive to a drive letter in the script, but unfortunately the path to the target folder includes an embedded space. The embedded space causes the mapping to fail, and I don't know if it is possible to escape quotes around the path. I've trie...
How to print like printf in Python3?
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In Python2, print was a keyword which introduced a statement:
print "Hi"
In Python3, print is a function which may be invoked:
print ("Hi")
In both versions, % is an operator which requires a string on the left-hand side and a value or a tuple of ...
Can Json.NET serialize / deserialize to / from a stream?
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UPDATE: This no longer works in the current version, see below for correct answer (no need to vote down, this is correct on older versions).
Use the JsonTextReader class with a StreamReader or use the JsonSerializer overload that takes a StreamRead...