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Rails how to run rake task
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You can run Rake tasks from your shell by running:
rake task_name
To run from from Ruby (e....
Regular expression to check if password is “8 characters including 1 uppercase letter, 1 special cha
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13 Answers
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Automatically plot different colored lines
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You could use a colormap such as HSV to generate a set of colors. For example:
cc=hsv(12);
fi...
Create Django model or update if exists
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If you're looking for "update if exists else create" use case, please refer to @Zags excellent...
贝因美创始人谈连续创业 谢宏：蓝海策略下的未来赢家 - 资讯 - 清泛网 - 专...
...27日，贝因美创始人、首席科学家身份的谢宏出席了“2015年创新中国总决赛暨秋季峰会”，并发表主旨演讲，讲述贝因美的从0到1，从1到N的发展历程，阐释成功创业创新的关键点。
“现在主要精力在于如何帮助贝因美转型升级...
Apache Spark: map vs mapPartitions?
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What's the difference between an RDD's map and mapPartitions method?
The method map conve...
Android: HTTP communication should use “Accept-Encoding: gzip”
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You should use http headers to indicate a connection can accept gzip encoded data, e.g:
HttpU...
How to get “wc -l” to print just the number of lines without file name?
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Try this way:
wc -l < file.txt
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A clean, lightweight alternative to Python's twisted? [closed]
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How do I reference a javascript object property with a hyphen in it?
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