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Performing Breadth First Search recursively
...ed over and over again. And as @Patrick noted, a binary tree backed by an array is typically stored in breadth-first traversal order anyway, so a breadth-first search on that would be trivial, also without needing an auxiliary queue.
...
PHP array_filter with arguments
... return $i < $this->num;
}
}
Usage (demo):
$arr = array(7, 8, 9, 10, 11, 12, 13);
$matches = array_filter($arr, array(new LowerThanFilter(12), 'isLower'));
print_r($matches);
As a sidenote, you can now replace LowerThanFilter with a more generic NumericComparisonFilter w...
Why does “,,,” == Array(4) in Javascript?
...ht hand operand is converted to a string and the string representation of Array(4) is ,,,:
> Array(4).toString()
",,,"
If you use the array constructor function and pass a number, it sets the length of the array to that number. So you can say you have four empty indexes (same as [,,,]) and ...
How do I get a plist as a Dictionary in Swift?
...
how does it looks like if Array?
– Arnlee Vizcayno
Jul 4 '14 at 8:35
...
Shuffle two list at once with same order
...
I get a easy way to do this
import numpy as np
a = np.array([0,1,2,3,4])
b = np.array([5,6,7,8,9])
indices = np.arange(a.shape[0])
np.random.shuffle(indices)
a = a[indices]
b = b[indices]
# a, array([3, 4, 1, 2, 0])
# b, array([8, 9, 6, 7, 5])
...
Why doesn't indexOf work on an array IE8?
...
Versions of IE before IE9 don't have an .indexOf() function for Array, to define the exact spec version, run this before trying to use it:
if (!Array.prototype.indexOf)
{
Array.prototype.indexOf = function(elt /*, from*/)
{
var len = this.length >>> 0;
var from = Nu...
Find document with array that contains a specific value
...
As favouriteFoods is a simple array of strings, you can just query that field directly:
PersonModel.find({ favouriteFoods: "sushi" }, ...);
But I'd also recommend making the string array explicit in your schema:
person = {
name : String,
favou...
Finding the index of elements based on a condition using python list comprehension
...I similar to Matlab's, you would use numpy, a package for multidimensional arrays and numerical math in Python which is heavily inspired by Matlab. You would be using a numpy array instead of a list.
>>> import numpy
>>> a = numpy.array([1, 2, 3, 1, 2, 3])
>>> a
array([1,...
How to deep watch an array in angularjs?
There is an array of objects in my scope, I want to watch all the values of each object.
10 Answers
...
Find html label associated with a given input
...FormElem').label.innerHTML = 'Look ma this works!';
No need for a lookup array :)
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