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In Angular, I need to search objects in an array
...lter) {
$scope.fish = [{category:'freshwater', id:'1', name: 'trout', more:'false'}, {category:'freshwater', id:'2', name:'bass', more:'false'}]
$scope.showdetails = function(fish_id){
var found = $filter('getById')($scope.fish, fish_id);
console.log(found);
$s...
Parallel.ForEach vs Task.Factory.StartNew
...ion. While the results will be (nearly) the same, this will introduce far more overhead than necessary, especially for large collections, and cause the overall runtimes to be slower.
FYI - The Partitioner used can be controlled by using the appropriate overloads to Parallel.ForEach, if so desired....
lexers vs parsers
...understood.
Here's where the real difference usually lies. See below for more.
Grammar understood by lexers: regular grammar (Chomsky's level 3).
Grammar understood by parsers: context-free grammar (Chomsky's level 2).
They attach semantics (meaning) to the language pieces they find.
Lexers att...
Counting the number of True Booleans in a Python List
...t method:
>>> [True,True,False].count(True)
2
This is actually more efficient than sum, as well as being more explicit about the intent, so there's no reason to use sum:
In [1]: import random
In [2]: x = [random.choice([True, False]) for i in range(100)]
In [3]: %timeit x.count(True)
...
Python __call__ special method practical example
...
So if used correctly, it can make the code more readable. I assume if it is used on the wrong place, it would make the code very unreadable as well.
– mohi666
Apr 29 '11 at 0:19
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Functional, Declarative, and Imperative Programming [closed]
...ramming. The distinction from imperative is that due to immutability (i.e. more generally RT), these "steps" cannot depend on mutable state, rather only the relational order of the expressed logic (i.e. the order of nesting of the function calls, a.k.a. sub-expressions).
For example, the HTML para...
CSS - Expand float child DIV height to parent's height
... width: 50%;
position: absolute;
right: 0;
top: 0;
}
Find more detailed results with CSS examples here and more information about equal height columns here.
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Setting variable to NULL after free
...little bit pointless if it is "obvious" that the pointer isn't accessed anymore after being freed, so this style is more appropriate for member data and global variables. Even for local variables, it may be a good approach if the function continues after the memory is released.
To complete the styl...
Unmarshaling nested JSON objects
... map of sub-tags OR Text) AND an unordered map of attributes. JSON is much more like a Go struct. So mapping JSON to structs is much simpler: Just model the struct after your JSON.
– Volker
Aug 6 '15 at 5:04
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What was the strangest coding standard rule that you were forced to follow? [closed]
...: if (!Initialize()) { RetVal=ERR_BADINIT; goto ReturnPoint; } (lots more code) ReturnPoint: return RetVal; } Problem solved! ;)
– Marc Bernier
Oct 20 '08 at 16:38
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