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某天我在浏览徽章列表时发现，可以通过连续30天访问网站而获得一枚银色勋章。于是我决定将这个作为我的目标，通过30天不间断地浏览网站并且达到1000威望值。但我将只回答问题而不提...
“open/close” SqlConnection or keep open?
...at least ;) Opening and closing costs time.
– David Mårtensson
Dec 14 '10 at 13:11
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@David Mart...
The cause of “bad magic number” error when loading a workspace and how to avoid it?
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So did I, when I accidentally used load() instead of read.csv(). :p
– Waldir Leoncio
Feb 12 '14 at 19:31
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Ruby: What is the easiest way to remove the first element from an array?
...eful when extracting info without an aditional step header, *properties = CSV.read(file_path,encoding: 'ISO-8859-1')
– juliangonzalez
Feb 15 '17 at 17:23
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Compression/Decompression string with C#
...ut only for UTF8-based things. If you add in, say, Swedish characters like åäö to the string value you're serialize/deserializing it will fail a round-trip test :/
– bc3tech
Aug 21 '19 at 12:32
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Split string into an array in Bash
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@YisraelDov: Bash has no way to deal with CSV by itself. It can't tell the difference between commas inside quotes and those outside them. You will need to use a tool that understands CSV such as a lib in a higher level language, for example the csv module in Python....
Dump Mongo Collection into JSON format
... The mongoexport utility takes a collection and exports to either JSON or CSV. You can specify a filter for the query, or a list of fields to output
Read more here: http://www.mongodb.org/display/DOCS/mongoexport
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“for line in…” results in UnicodeDecodeError: 'utf-8' codec can't decode byte
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Try this to read using pandas
pd.read_csv('u.item', sep='|', names=m_cols , encoding='latin-1')
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Which is generally best to use — StringComparison.OrdinalIgnoreCase or StringComparison.InvariantCul
...considered identical. For example: "\u0061\u030a" and "\u00e5" both render å. However in a ordinal compare will be considered different.
Which you choose heavily depends on the application you are building.
If I was writing a line-of-business app which was only used by Turkish users, I would be su...
When to Redis? When to MongoDB? [closed]
... SQL-driven relational database: relational databases simplify to indexed CSV files, each file being a table; document stores simplify to indexed JSON files, each file being a document, with multiple files grouped together.
JSON files are similar in structure to XML and YAML files, and to dictiona...