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In Python, how can you load YAML mappings as OrderedDicts?
...l due to the new dict implementation that has been in use in pypy for some time (although considered CPython implementation detail for now).
Update: In python 3.7+, the insertion-order preservation nature of dict objects has been declared to be an official part of the Python language spec, see What...
Fastest hash for non-cryptographic uses?
...
fcn time generated hash
crc32: 0.03163 798740135
md5: 0.0731 0dbab6d0c841278d33be207f14eeab8b
sha1: 0.07331 417a9e5c9ac7c52e32727cfd25da99eca9339a80
xor: 0.65218 119
xor2: 0.29301 134217728
add: 0.57841 1105...
How to convert an array of strings to an array of floats in numpy?
...ch was the fastest (slightly faster than pradeep bisht's answer, about 1.5 times faster than Thomio's answer, and more than twice as fast as the accepted answer). Have an upvote!
– jodag
Aug 13 '18 at 4:47
...
Why Choose Struct Over Class?
...ng or comparing instances doesn't make sense (e.g., Window)
Instance lifetime is tied to external effects (e.g., TemporaryFile)
Instances are just "sinks"--write-only conduits to external state (e.g.CGContext)
It implies that structs should be the default and classes should be a fallback.
...
@UniqueConstraint annotation in Java
...Column1 and Column2 acts as unique constraints separately.
Ex : if any time either the value of column1 or column2 value matches then you will get UNIQUE_CONSTRAINT Error.
Way2 :
@Entity
@Table(name = "table_name", uniqueConstraints={@UniqueConstraint(columnNames ={"column1","column2"})})
-...
How to round a number to significant figures in Python
...ar it always trims trailing zeros even if they are significant. The number 1.23400 has 6 significant digits, but "%.6g" %(1.23400) will result in "1.234" which is incorrect. More details in this blog post: randlet.com/blog/python-significant-figures-format
– randlet
...
AngularJS $resource RESTful example
...rce, you should probably just be using $http on it's own.
Update: Angular 1.2 and Promises
As of Angular 1.2, resources support promises. But they didn't change the rest of the behavior.
To leverage promises with $resource, you need to use the $promise property on the returned value.
Example usi...
What jsf component can render a div tag?
...e unless I add a style or style class to the panelgroup, using the mojarra-1.2_15 implementation.
– James McMahon
Apr 1 '11 at 14:50
3
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Is there a way to make npm install (the command) to work behind proxy?
...hrc or ~/.bash_profile so you don't have to worry about your settings everytime you open a new terminal window!
If your company is like mine, I have to change my password pretty often. So I added the following into my ~/.bashrc or ~/.bash_profile so that whenever I open a terminal, I know my npm is...
What is android:weightSum in android, and how does it work?
...and setting the weightSum to 1.0. Must be a floating point value, such as "1.2"
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/main_rel"
android:layout_width="match_parent"
android:layout_height="match_parent"
android...