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Removing all empty elements from a hash / YAML?
...ct!
h = { a: 1, b: false, c: nil }
h.compact! #=> { a: 1, b: false }
https://ruby-doc.org/core-2.4.0/Hash.html#method-i-compact-21
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Minimum and maximum value of z-index?
...t's the maximum value of a 32 bits integer: 2147483647
Also see the docs: https://www.w3.org/TR/CSS22/visuren.html#z-index
(Negative numbers are allowed)
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How to handle a lost KeyStore password in Android?
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Brute is your best bet!
Here is a script that helped me out:
https://code.google.com/p/android-keystore-password-recover/wiki/HowTo
You can optionally give it a list of words the password might include for a very fast recover (for me it worked in <1 sec)
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Filter by property
...nager()
Company.objects.needs_fewer_chairs_than(4).many_employees()
See https://docs.djangoproject.com/en/1.9/topics/db/managers/ for more.
Note that I am going off the documentation and have not tested the above.
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How to paste in a new line with vim?
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Using this plugin: https://github.com/tpope/vim-unimpaired
]p pastes on the line below
[p pastes on the line above
advantages:
works on all yanked text (word, line, character, etc)
indents the pasted text to match the indentation of the ...
Create web service proxy in Visual Studio from a WSDL file
...ows\v10.0A\bin\NETFX 4.6.1 Tools\wsdl.exe"
/language:CS /n:"My.Namespace" https://www.example.com/service/wsdl
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Print all properties of a Python Class [duplicate]
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Another way is to call the dir() function (see https://docs.python.org/2/library/functions.html#dir).
a = Animal()
dir(a)
>>>
['__class__', '__delattr__', '__dict__', '__doc__', '__format__', '__getattribute__',
'__hash__', '__init__', '__module__', '__new__...
What is this 'Waiting for Background operation' in Visual Studio 2012?
...as having the same problem, especially in cshtml pages. I found this page: https://devblogs.microsoft.com/aspnet/visual-studio-11-beta-razor-editor-issue-workaround that suggests changing the indent option in Tools > Options > Text Editor > HTML > Tab to Smart instead of Block. In my cas...
How to have multiple CSS transitions on an element?
...background 1s ease-in-out 2s, width 2s linear; /* Safari */
}
Reference: https://kolosek.com/css-transition/
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How do I convert dates in a Pandas data frame to a 'date' data type?
...lso add , index_col=0 in there if you want the date to be your index.
See https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.read_csv.html
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