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Count the items from a IEnumerable without iterating?
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Just adding extra some info:
The Count() extension doesn't always iterate. Consider Linq to Sql, where the count goes to the database, but instead of bringing back all the rows, it issues the Sql Count() command and returns that result instead.
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Changing names of parameterized tests
... Very nice. Works like a charm. Would be nice, if you could add the info, that it is required to add "String label, ..." as first parameter to the invoked @Test-method.
– gia
Jul 11 '13 at 6:49
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Reverse Range in Swift
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result: 10, 9, 8 ... 0
You can customise it any way you like. For more info read func sequence<T> reference
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PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
...ng similar to:
string(40) "5fe69c95ed70a9869d9f9af7d8400a6673bb9ce9"
More info: http://php.net/manual/en/function.random-bytes.php
PHP 5 (outdated)
I was just looking into how to solve this same problem, but I also want my function to create a token that can be used for password retrieval as well. ...
Enforcing the type of the indexed members of a Typescript object?
...ntage I see to using this over {[key: T]: K} is that you can encode useful info on what sort of key you are using in place of "key" e.g. if your object only had prime keys you could hint at that like so: {[prime: number]: yourType}.
Here's a regex I wrote to help with these conversions. This will on...
What is the difference between require and require-dev sections in composer.json?
...ause of the following reasons :
speed
potential of expose some debuging info
etc
Some good candidates for require-dev are :
"filp/whoops": "^2.0",
"fzaninotto/faker": "^1.4",
"mockery/mockery": "^1.0",
"nunomaduro/collision": "^2.0",
"phpunit/phpunit": "^7.0"
you can see what above packages...
Group a list of objects by an attribute : Java
...ud_location;, this should work. Or you can define a getter function. More info in cs.princeton.edu/courses/archive/spr96/cs333/java/tutorial/java/…
– Eranga Heshan
Dec 30 '18 at 14:19
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get list from pandas dataframe column
...e method does not sort unlike np.unique() therefore it is faster. For more info look at pandas.pydata.org/pandas-docs/stable/reference/api/… and numpy.org/devdocs/reference/generated/numpy.unique.html. The docs are pretty solid for both the methods.
– Anirudh Bandi
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Get Image size WITHOUT loading image into memory
...oks like it could read the whole file if it was malformed. If it reads the info marker OK however, it should break out early. The function handler ultimately sets self.size which are the dimensions of the image.
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Exception.Message vs Exception.ToString()
...er to use Exception.ToString() . With the latter, you retain more crucial information about the error.
7 Answers
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