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What does the clearfix class do in css? [duplicate]

I've seen div tags use a clearfix class when it's child divs use the float property. The clearfix class looks like this: ...
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UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 13: ordinal not in range(128)

I'm using NLTK to perform kmeans clustering on my text file in which each line is considered as a document. So for example, my text file is something like this: ...
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MySQL “NOT IN” query

... To use IN, you must have a set, use this syntax instead: SELECT * FROM Table1 WHERE Table1.principal NOT IN (SELECT principal FROM table2) share | improve this answer ...
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HTML5 Local storage vs. Session storage

... localStorage and sessionStorage both extend Storage. There is no difference between them except for the intended "non-persistence" of sessionStorage. That is, the data stored in localStorage persists until explicitly deleted. Changes made are saved and available...
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What is middleware exactly?

...eard a lot of people talking recently about middleware , but what is the exact definition of middleware? When I look into middleware, I find a lot of information and some definitions, but while reading these information and definitions, it seems that mostly all 'wares' are in the middle of somethin...
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Increase heap size in Java

...s 2003 server (64-bit) with 8 GB RAM. How can I increase the heap memory maximum? I am using the -Xmx1500m flag to increase the heap size to 1500 Mb. Can I increase the heap memory to 75% of physical memory (6 GB Heap)? ...
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Insert multiple rows WITHOUT repeating the “INSERT INTO …” part of the statement?

I know I've done this before years ago, but I can't remember the syntax, and I can't find it anywhere due to pulling up tons of help docs and articles about "bulk imports". ...
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How do I install cURL on cygwin?

... As @Casebash said it is the setup.exe and the Category name is Net, in that look for package name curl and select it. – Kuldeep Jain Oct 19 '13 at 7:42 ...
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How to convert QString to std::string?

... QString qs; // Either this if you use UTF-8 anywhere std::string utf8_text = qs.toUtf8().constData(); // or this if you're on Windows :-) std::string current_locale_text = qs.toLocal8Bit().constData(); The suggested (accepted) method may work if you specify codec. See: http://doc.qt.io/qt-5/q...
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Change from SQLite to PostgreSQL in a fresh Rails project

...You can change your database.yml to this instead of using the out of the box sqlite one: development: adapter: postgresql encoding: utf8 database: project_development pool: 5 username: password: test: &TEST adapter: postgresql encoding: utf8 database: project_test pool: 5 ...