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Merge 2 arrays of objects
...bj[0], value: obj[1] }))
}
const v1 = updateOrMerge(arr1, arr2)
const v2 = updateOrMerge(v1, arr3)
console.log(`Merged array1 and array2: ${JSON.stringify(v1)} \n\n`)
console.log(`Merged above response and array3: ${JSON.stringify(v2)} \n\n`)
<script src="https://cdnjs.cloudflare.com/ajax...
What are the use(s) for tags in Go?
...to, detailed in the package doc
yaml - used by the gopkg.in/yaml.v2 package, detailed at yaml.Marshal()
db - used by the github.com/jmoiron/sqlx package; also used by github.com/go-gorp/gorp package
orm - used by the github.com/astaxie/beego/orm package, detailed ...
What is the maximum float in Python?
...
It seems sys.float_info is available starting from v2.6. How about v2.3-5?
– Aleksei Fedotov
Jan 23 '15 at 13:40
1
...
Best way to merge two maps and sum the values of same key?
...table.HashMap(1 -> 11 , 2 -> 12)
map1.merged(map2)({ case ((k,v1),(_,v2)) => (k,v1+v2) })
Also in scaladoc mentioned that
The merged method is on average more performant than doing a
traversal and reconstructing a new immutable hash map from
scratch, or ++.
...
git push says “everything up-to-date” even though I have local changes
...the commit at a tagged official release point, like this:
$ git checkout v2.6.18
Earlier versions of git did not allow this and asked you to create a temporary branch using the -b option, but starting from version 1.5.0, the above command detaches your HEAD from the current branch and directl...
Multiprocessing: How to use Pool.map on a function defined in a class?
...or p in proc]
return [p.recv() for (p, c) in pipe]
if __name__ == '__main__':
print parmap(lambda x: x**x, range(1, 5))
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Defeating a Poker Bot
...
classify rogue cheating or robotic
players.
Back when online poker was a fairly
new entity, there was rumour and talk with limited evidence that
some poker client software
screen-shots of suspicious players
desktops to see if they were running
programs that assist them. However (even if this were ...
How to find a min/max with Ruby
..., so anything that includes Enumerable will have those methods available.
v2.4 introduces own Array#min and Array#max, which are way faster than Enumerable's methods because they skip calling #each.
@nicholasklick mentions another option, Enumerable#minmax, but this time returning an array of [min...
What algorithms compute directions from point A to point B on a map?
...tion, you can have several layers of map data: A 'highways' layer that contains only highways, a 'secondary' layer that contains only secondary streets, and so forth. Then, you explore only smaller sections of the more detailed layers, expanding as necessary. Obviously this description leaves out a ...
重构理论及实践——用工厂模式重构c++后台代码 - C/C++ - 清泛网 - 专注C/C...
...重构下吧——这就是重构理论中提到的三次法则。
代码V2版
这个不同分支的消息处理代码，是很适合用设计模式里的简单工厂模式的。模如其名，简单工厂模式是非常，非常，非常简单的，原理就不再赘述了。套用到这个...