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jQuery: checking if the value of a field is null (empty)
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170
The value of a field can not be null, it's always a string value.
The code will check if the st...
Resizing SVG in html?
...st XML), and look for something like this at the top:
<svg ... width="50px" height="50px"...
Erase width and height attributes; the defaults are 100%, so it should stretch to whatever the container allows it.
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vs2008编译boost详细步骤 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
vs2008编译boost详细步骤【一、Boost库的介绍】Boost库是一个经过千锤百炼、可移植、提供源代码的C++库，作为标准库的后备，是C++标准化进程的发动机之一。 Boost库由C++标准委员会库工作组成员发起，其 【一、Boost库的介绍】
Bo...
List of installed gems?
... Gem::Requirement.default)
specs = Gem.source_index.search(dep)
puts specs[0..5].map{ |s| "#{s.name} #{s.version}" }
# >> Platform 0.4.0
# >> abstract 1.0.0
# >> actionmailer 3.0.5
# >> actionpack 3.0.5
# >> activemodel 3.0.5
# >> activerecord 3.0.5
Here's an ...
Run command on the Ansible host
...ou want to run an entire play on the Ansible host, then specify hosts: 127.0.0.1 and connection:local in the play, for example:
- name: a play that runs entirely on the ansible host
hosts: 127.0.0.1
connection: local
tasks:
- name: check out a git repository
git: repo=git://foosball.exa...
Evenly distributing n points on a sphere
...orithm that can give me positions around a sphere for N points (less than 20, probably) that vaguely spreads them out. There's no need for "perfection", but I just need it so none of them are bunched together.
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Which regular expression operator means 'Don't' match this character?
...) will match anything but word characters; similarly, [\d] will match the 0-9 digits while [\D] matches anything but the 0-9 digits, and so on.
If you use PHP you can take a look at the regex character classes documentation.
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How to call Makefile from another Makefile?
...led /path/to/project/makefile and one called /path/to/project/gtest-1.4.0/make/Makefile . I'm attempting to have the former call the latter. In /path/to/project/makefile, I have
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Get the current year in JavaScript
...ily: sans-serif;
}
<footer>
&copy; <span id="year">2018</span> by FooBar
</footer>
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