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Why is the asterisk before the variable name, rather than after the type?
... same syntax that use of the same-typed variables do. When you declare an array of ints, it does not look like: int[10] x. This is simply not C's syntax. The grammar explicitly parses as: int (*x), and not as (int *) x, so placing the asterisk on the left is simply misleading and based on a misunde...
How to add reference to a method parameter in javadoc?
... new <code>String</code> that contains characters from
* a subarray of the character array argument. The <code>offset</code>
* argument is the index of the first character of the subarray and
* the <code>count</code> argument specifies the length of the
* suba...
How to access the first property of a Javascript object?
...
This is not very efficient as it creates an entire array of all of the object's keys.
– Andrew Mao
Jan 29 '14 at 5:23
9
...
Which is faster: Stack allocation or Heap allocation
...ause the Stack is a lot smaller than the Heap. If you want to allocate big arrays, you better allocate them on the Heap. If you try to allocate a big array on the Stack it would give you a Stack Overflow. Try for example in C++ this: int t[100000000]; Try for example t[10000000] = 10; and then cout ...
Programmatically update widget from activity/service/receiver
...ss);
intent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
// Use an array and EXTRA_APPWIDGET_IDS instead of AppWidgetManager.EXTRA_APPWIDGET_ID,
// since it seems the onUpdate() is only fired on that:
int[] ids = AppWidgetManager.getInstance(getApplication())
.getAppWidgetIds(new ...
Iteration over std::vector: unsigned vs signed index variable
...; i != v.size(); i++) {
/* std::cout << v[i]; ... */
}
Using arrays
Using iterators
for(element_type* it = a; it != (a + (sizeof a / sizeof *a)); it++) {
/* std::cout << *it; ... */
}
Using Range C++11
for(auto const& value: a) {
/* std::cout << value; ......
Can you 'exit' a loop in PHP?
...
You are looking for the break statement.
$arr = array('one', 'two', 'three', 'four', 'stop', 'five');
while (list(, $val) = each($arr)) {
if ($val == 'stop') {
break; /* You could also write 'break 1;' here. */
}
echo "$val<br />\n";
}
...
Rails 4 - Strong Parameters - Nested Objects
...nested attributes you do specify the attributes of nested object within an array. In your case it would be
Update as suggested by @RafaelOliveira
params.require(:measurement)
.permit(:name, :groundtruth => [:type, :coordinates => []])
On the other hand if you want nested of multiple ...
Find rows with multiple duplicate fields with Active Record, Rails & Postgres
...
I had to pass an explict array to select() as in: User.select([:first,:email]).group(:first,:email).having("count(*) > 1").count in order to work.
– Rafael Oliveira
Oct 6 '14 at 22:27
...
How to convert comma-delimited string to list in Python?
...at;dog:greff,snake/
example delimeters: ,;- /|:
'''
def string_to_splitted_array(data,delimeters):
#result list
res = []
# we will add chars into sub_str until
# reach a delimeter
sub_str = ''
for c in data: #iterate over data char by char
# if we reached a delimeter,...