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Postgres dump of only parts of tables for a dev snapshot
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3 Answers
3
Active
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What is the difference between pluck and collect in Rails?
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231
pluck is on the db level. It will only query the particular field. See this.
When you do:
Us...
List of ANSI color escape sequences
On most terminals it is possible to colorize output using the \033 ANSI escape sequence.
5 Answers
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List comprehension in Ruby
...k.nil?
self.collect(&block).compact
end
end
some_array = [1, 2, 3, 4, 5, 6]
new_array = some_array.comprehend {|x| x * 3 if x % 2 == 0}
puts new_array
Prints:
6
12
18
I would probably just do it the way you did though.
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PowerShell: Store Entire Text File Contents in Variable
...ldsmanojlds
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How to get a substring of text?
I have text with length ~700. How do I get only ~30 of its first characters?
5 Answers
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JPQL IN clause: Java-Arrays (or Lists, Sets…)?
... specify every single parameter to IN directly (as in, "in (:in1, :in2, :in3)").
2 Answers
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NASM x86汇编入门指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...gramming asm derick_tut #helloworld内容1.介绍2.为什么写这篇文章3.NASM(The...NASM x86汇编入门指南
原文链接:http://docs.cs.up.ac.za/programming/asm/derick_tut/#helloworld
内容
1. 介绍
2. 为什么写这篇文章
3. NASM(The Netwide Assembler)汇编编译工具
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JavaScript - onClick to get the ID of the clicked button
...id="2" onClick="reply_click(this.id)">B2</button>
<button id="3" onClick="reply_click(this.id)">B3</button>
<script type="text/javascript">
function reply_click(clicked_id)
{
alert(clicked_id);
}
</script>
This will send the ID this.id...