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Elegant way to invert a map in Scala
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.map(_._1) would be more legibile as just .keys
– cheezsteak
Feb 12 '16 at 18:13
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What is the difference between a field and a property?
...ly-upvoted incorrect comments. A property should always encapsulate one or more fields, and should never do any heavy lifting or validation. If you need a property such a UserName or Password to have validation, change their type from strings to Value Objects. There is an unspoken contract between ...
How do I check that multiple keys are in a dict in a single pass?
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+1, I like this better than Greg's answer because it's more concise AND faster (no building of irrelevant temporary list, AND full exploitation of short-circuiting).
– Alex Martelli
Aug 17 '09 at 2:34
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ng-repeat :filter by single field
... nicer, since you can see that you are filtering by color. This method is more compact, which might be useful if you want to search by multiple properties, and you'd rather not have a long object in the HTML: filter:{ color: '...', size: '...', ...}
– Mark Rajcok
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How to subtract X days from a date using Java calendar?
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What is the id( ) function used for?
...." (Python Standard Library - Built-in Functions) A unique number. Nothing more, and nothing less. Think of it as a social-security number or employee id number for Python objects.
Is it the same with memory addresses in C?
Conceptually, yes, in that they are both guaranteed to be unique in t...
Removing Data From ElasticSearch
...lete an index -
curl -XDELETE localhost:9200/shop
If you wish to delete more than one index that follows a certain naming convention (note the *, a wildcard), -
curl -XDELETE localhost:9200/.mar*
Visually
There are various tools as mentioned above, I wont list them here but I will link you t...
Does Internet Explorer 8 support HTML 5?
...gin called "Chrome Frame". It renders HTML 5 just like Google Chrome does! More info is here: appleinsider.com/articles/09/09/24/…
– Shadowpat
May 6 '13 at 1:04
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How to Create Grid/Tile View?
...ks yet. And yes, CSS columns might work too, but unlike flexbox that seems more designed for text than for layout.
– Oriol
Jan 30 '16 at 13:48
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Python function as a function argument?
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def myfunc(anotherfunc, extraArgs):
anotherfunc(*extraArgs)
To be more specific ... with various arguments ...
>>> def x(a,b):
... print "param 1 %s param 2 %s"%(a,b)
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>>> def y(z,t):
... z(*t)
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>>> y(x,("hello","manuel"))
param 1 hello param 2 manu...