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Elegant way to invert a map in Scala
...alues are unique, this works:
(Map() ++ origMap.map(_.swap))
On Scala 2.8, however, it's easier:
origMap.map(_.swap)
Being able to do that is part of the reason why Scala 2.8 has a new collection library.
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How to define a two-dimensional array?
...s this
"list comprehension".
# Creates a list containing 5 lists, each of 8 items, all set to 0
w, h = 8, 5;
Matrix = [[0 for x in range(w)] for y in range(h)]
You can now add items to the list:
Matrix[0][0] = 1
Matrix[6][0] = 3 # error! range...
Matrix[0][6] = 3 # valid
Note that the matrix...
how to break the _.each function in underscore.js
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edited Sep 4 '15 at 20:28
wil93
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answered Jan 8 '12 at 18:10
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Saving an Object (Data persistence)
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468
You could use the pickle module in the standard library.
Here's an elementary application of it ...
Best way to obfuscate an e-mail address on a website?
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108
I encode the characters as HTML entities (something like this). It doesn't require JS to be enab...
What is the use of hashCode in Java?
... John TopleyJohn Topley
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What does status=canceled for a resource mean in Chrome Developer Tools?
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edited Nov 9 '15 at 8:35
holdfenytolvaj
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answe...
Manually put files to Android emulator SD card
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answered May 11 '10 at 8:02
JanuszJanusz
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Find files and tar them (with spaces)
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218
Use this:
find . -type f -print0 | tar -czvf backup.tar.gz --null -T -
It will:
deal with f...
How to create a table from select query result in SQL Server 2008 [duplicate]
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Use following syntax to create new table from old table in SQL server 2008
Select * into new_table from old_table
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