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How to append something to an array?
How do I append an object (such as a string or number) to an array in JavaScript?
30 Answers
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How to sum all column values in multi-dimensional array?
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$sumArray = array();
foreach ($myArray as $k=>$subArray) {
foreach ($subArray as $id=>$value) {
$sumArray[$id]+=$value;
}
}
print_r($sumArray);
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Return array in a function
I have an array int arr[5] that is passed to a function fillarr(int arr[]) :
19 Answers
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Convert stdClass object to array in PHP
...he easiest way is to JSON-encode your object and then decode it back to an array:
$array = json_decode(json_encode($object), true);
Or if you prefer, you can traverse the object manually, too:
foreach ($object as $value)
$array[] = $value->post_id;
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How to initialize an array in one step using Ruby?
I initialize an array this way:
9 Answers
9
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Using numpy to build an array of all combinations of two arrays
... µs per loop
In [114]:
cartesian(([1, 2, 3], [4, 5], [6, 7]))
Out[114]:
array([[1, 4, 6],
[1, 4, 7],
[1, 5, 6],
[1, 5, 7],
[2, 4, 6],
[2, 4, 7],
[2, 5, 6],
[2, 5, 7],
[3, 4, 6],
[3, 4, 7],
[3, 5, 6],
[3, 5, 7]])
numpy....
ValueError: setting an array element with a sequence
... showed us, the only thing we can tell is that you are trying to create an array from a list that isn't shaped like a multi-dimensional array. For example
numpy.array([[1,2], [2, 3, 4]])
or
numpy.array([[1,2], [2, [3, 4]]])
will yield this error message, because the shape of the input list is...
php stdClass to array
I have a problem to convert an object stdClass to array.
I have tried in this way:
10 Answers
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Random shuffling of an array
I need to randomly shuffle the following Array:
29 Answers
29
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Why is using “for…in” for array iteration a bad idea?
I've been told not to use for...in with arrays in JavaScript. Why not?
27 Answers
27...