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Using a dictionary to count the items in a list [duplicate]
... 2.7 and 3.1 there is special Counter dict for this purpose.
>>> from collections import Counter
>>> Counter(['apple','red','apple','red','red','pear'])
Counter({'red': 3, 'apple': 2, 'pear': 1})
share
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How do I revert all local changes in Git managed project to previous state?
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will not remove untracked files, where as git-clean will remove any files from the tracked root directory that are not under git tracking. WARNING - BE CAREFUL WITH THIS! It is helpful to run a dry-run with git-clean first, to see what it will delete.
This is also especially useful when you get th...
Comparison of Lucene Analyzers
...hat I can avoid this by using a KeywordAnalyzer but I don't want to change from the StandardAnalyzer without understanding the issues surrounding analyzers. Thanks very much.
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Which encoding opens CSV files correctly with Excel on both Mac and Windows?
...252 for some reason. Be advised that ISO-8859-1 is missing some characters from WINDOWS-1252 as shown here:
| Char | ANSI | Unicode | ANSI Hex | Unicode Hex | HTML entity | Unicode Name | Unicode Range |
| € | 128 | 8364 | 0x80 | U+20AC | &...
What is the single most influential book every programmer should read? [closed]
...the UNIX Environment by W. Richard Stevens
Hackers and Painters: Big Ideas from the Computer Age
The Soul of a New Machine by Tracy Kidder
CLR via C# by Jeffrey Richter
The Timeless Way of Building by Christopher Alexander
Design Patterns in C# by Steve Metsker
Alice in Wonderland by Lewis Carol
Zen...
How to get the difference between two arrays of objects in JavaScript
...eturn a.value ===... in your answer? (Nice solution, by the way, +1) Aside from using Array.prototype.some(), I can't really find a more efficient / shorter way of doing this.
– Cerbrus
Feb 24 '14 at 14:08
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Catch Ctrl-C in C
...y latest edit? No hard feelings there it would be perfectly understandable from your point of view :)
– Peter Varo
May 18 '17 at 22:51
2
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Test a weekly cron job [closed]
...it does nothing to tell you whether the script will actually work when run from cron. Use the excellent crontest script in one of the other answers to this question.
– andynormancx
Apr 24 '16 at 14:38
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How to switch to the new browser window, which opens after click on the button?
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This script helps you to switch over from a Parent window to a Child window and back cntrl to Parent window
String parentWindow = driver.getWindowHandle();
Set<String> handles = driver.getWindowHandles();
for(String windowHandle : handles)
{
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node.js execute system command synchronously
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How can I disconnect from this subprocess?
– JulianSoto
Sep 26 '18 at 4:09
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