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Create an empty list in python with certain size
...il, as our list has only 10 elements.
range(x) creates a list from [0, 1, 2, ... x-1]
# 2.X only. Use list(range(10)) in 3.X.
>>> l = range(10)
>>> l
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
Using a function to create a list:
>>> def display():
... s1 = []
... for i in ...
Difference between freeze and seal
... with sealed or frozen objects
Safari: sealed or frozen objects enumerate 92% slower (as of 2014)
Tests: Sealed objects, Frozen objects.
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Merging two arrays in .NET
Is there a built in function in .NET 2.0 that will take two arrays and merge them into one array?
21 Answers
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Git rebase merge conflict cannot continue
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There are a couple situations where I've seen rebase get stuck. One is if the changes become n...
How big is too big for a PostgreSQL table?
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What does $_ mean in PowerShell?
... in the pipe line, which is called $PSItem in Powershell 3 and newer.
1,2,3 | %{ write-host $_ }
or
1,2,3 | %{ write-host $PSItem }
For example in the above code the %{} block is called for every value in the array. The $_ or $PSItem variable will contain the current value.
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How to get users to read error messages?
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26 Answers
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Can I read the hash portion of the URL on my server-side application (PHP, Ruby, Python, etc.)?
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12 Answers
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How many bytes in a JavaScript string?
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String values are not implementation dependent, according the ECMA-262 3rd Edition Specification, each character represents a single 16-bit unit of UTF-16 text:
4.3.16 String Value
A string value is a member of the type String and is a
finite ordered sequence of zero or
more 16-bit unsigned...
super() in Java
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267
super() calls the parent constructor with no arguments.
It can be used also with arguments. I...