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Removing all empty elements from a hash / YAML?
...add a compact method to Hash like this
class Hash
def compact
delete_if { |k, v| v.nil? }
end
end
or for a version that supports recursion
class Hash
def compact(opts={})
inject({}) do |new_hash, (k,v)|
if !v.nil?
new_hash[k] = opts[:recurse] && v.class == Has...
How to get Chrome to allow mixed content?
...Go back to the site and Refresh the page
Older Chrome Versions:
timmmy_42 answers this on: https://productforums.google.com/forum/#!topic/chrome/OrwppKWbKnc
In the address bar at the right end should be a 'shield' icon, you can
click on that to run insecure content.
This worked for me i...
Java RegEx meta character (.) and ordinary dot?
...ork, but some regex engines will treat this as syntax errors, for example \_ will cause an error in .NET.
Some others will lead to false results, for example \< is interpreted as a literal < in Perl, but in egrep it means "word boundary".
So write -?\d+\.\d+\$ to match 1.50$, -2.00$ etc. and...
Fatal error: Class 'SoapClient' not found
...rvice example and I get this error even though I uncommented extension=php_soap.dll in the php.ini file:
11 Answers
...
How do I replace multiple spaces with a single space in C#?
... I like it because it doesnt need Regex
– AleX_
Dec 22 '15 at 18:08
3
This would be ineffi...
How do I concatenate two text files in PowerShell?
...eter (e.g. date time):
gci *.log | sort LastWriteTime | % {$(Get-Content $_)} | Set-Content result.log
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ALTER TABLE to add a composite primary key
...nt drop column id;
ERROR 1025 (HY000): Error on rename of
'./test/#sql-a04_b' to './test/parent' (errno: 150).
If you want to drop a primary key that's being referenced by another table, you will have to drop the foreign key in that other table first. You can recreate that foreign key if you sti...
Change Image of ImageView programmatically in Android
...und.
Use this instead:
qImageView.setBackgroundResource(R.drawable.thumbs_down);
Here's a thread that talks about the differences between the two methods.
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Deep Learning（深度学习）学习笔记整理系列之（二） - 大数据 & AI - 清泛...
Deep Learning（深度学习）学习笔记整理系列之（二）Deep_Learning_Series_2Deep Learning（深度学习）学习笔记整理系列zouxy09@qq.comhttp: blog.csdn.net zouxy09作者：Zouxyversion 1.0 2013-04-08原文网址：h...Deep Learning（深度学习）学习笔记整理系列
zo...
“f” after number
... I tried the above example with LLVM version 7.0.0 (clang-700.0.65) x86_64-apple-darwin15.0.0 and the .out files were identical as well.
– Nick
Aug 21 '15 at 0:00
add a co...