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Remove duplicate values from JS array [duplicate]
...bout types (e.g. it's always numbers), this solution is optimal.
The best from two worlds
A universal solution combines both approaches: it uses hash lookups for primitives and linear search for objects.
function uniq(a) {
var prims = {"boolean":{}, "number":{}, "string":{}}, objs = [];
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Retrieve version from maven pom.xml in code
What is the simplest way to retrieve version number from maven's pom.xml in code, i.e., programatically?
11 Answers
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How to read a line from the console in C?
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Note that this getline() is different from the POSIX standard getline() function.
– Jonathan Leffler
Apr 12 '17 at 5:42
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How to run a single test from a rails test suite?
How can I run a single test from a rails test suite?
12 Answers
12
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How to modify a global variable within a function in bash?
...(...) construct), you are creating a subshell. Subshells inherit variables from their parent shells, but this only works one way - a subshell cannot modify the environment of its parent shell. Your variable e is set within a subshell, but not the parent shell. There are two ways to pass values from ...
Access nested dictionary items via a list of keys?
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Use reduce() to traverse the dictionary:
from functools import reduce # forward compatibility for Python 3
import operator
def getFromDict(dataDict, mapList):
return reduce(operator.getitem, mapList, dataDict)
and reuse getFromDict to find the location to sto...
Running multiple AsyncTasks at the same time — not possible?
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AsyncTask uses a thread pool pattern for running the stuff from doInBackground(). The issue is initially (in early Android OS versions) the pool size was just 1, meaning no parallel computations for a bunch of AsyncTasks. But later they fixed that and now the size is 5, so at most 5 ...
Sorting list based on values from another list?
...rted().
using a list comprehension extract the first elements of each pair from the sorted, zipped list.
For more information on how to set\use the key parameter as well as the sorted function in general, take a look at this.
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Remove items from one list in another
...o figure out how to traverse a generic list of items that I want to remove from another list of items.
9 Answers
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Capture characters from standard input without waiting for enter to be pressed
...equently for me. But in C or C++, what is the best way to read a character from standard input without waiting for a newline (press enter).
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