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Deleting multiple elements from a list
...ple elements from a list at the same time? If I want to delete elements at index 0 and 2, and try something like del somelist[0] , followed by del somelist[2] , the second statement will actually delete somelist[3] .
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.htaccess redirect all pages to new domain
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This will redirect to the default index, which is what your question was about. Just for clarity, since, due to proximity, your statement appears to be directed toward user968421's answer just above this, user968421's answer is correct when the intent is to r...
LIKE vs CONTAINS on SQL Server
...put it in a valid query) should be faster, because it can use some form of index (in this case, a full text index). Of course, this form of query is only available if the column is in a full text index. If it isn't, then only the first form is available.
The first query, using LIKE, will be unable ...
Why would iterating over a List be faster than indexing through it?
...tem3 print item3
This is horribly inefficient because every time you are indexing it restarts from the beginning of the list and goes through every item. This means that your complexity is effectively O(N^2) just to traverse the list!
If instead I did this:
for(String s: list) {
System.out.p...
Remove duplicates from a List in C#
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HashSet doesn't have an index , therefore it's not always possible to use it. I have to create once a huge list without duplicates and then use it for ListView in the virtual mode. It was super-fast to make a HashSet<> first and then convert ...
Is it possible to have nested templates in Go using the standard library?
...es on your own.
Consider the following example with two different pages ("index.html" and "other.html") that both inherit from "base.html":
// Content of base.html:
{{define "base"}}<html>
<head>{{template "head" .}}</head>
<body>{{template "body" .}}</body>
</...
Intelli J IDEA takes forever to update indices
...Once you hit that, IntelliJ will restart and then you can see that all the indexing is done really fast.
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Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?
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To answer this question, we have to look at how indexing a multidimensional array works in Numpy. Let's first say you have the array x from your question. The buffer assigned to x will contain 16 ascending integers from 0 to 15. If you access one element, say x[i,j], Nu...
Rails migration for has_and_belongs_to_many join table
...ll => false
t.references :orange, :null => false
end
# Adding the index can massively speed up join tables. Don't use the
# unique if you allow duplicates.
add_index(:apples_oranges, [:apple_id, :orange_id], :unique => true)
If you use the :unique => true on the index, then you shou...
Pretty Printing a pandas dataframe
...-----+
Note:
To suppress row indices for all types of data, pass showindex="never" or showindex=False.
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