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What are the differences between a multidimensional array and an array of arrays in C#?
... array var jagged = new int[10][5] works like this: Look up the element at index 3 (which is an array) and look up the element at index 6 in that array (which is a value). For each dimension in this case, there's an additional look up (this is an expensive memory access pattern).
A multidimensional ...
Get Selected index of UITableView
I want to have selected index for UITableView .
I have written following code:
5 Answers
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Finding the index of elements based on a condition using python list comprehension
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In Python, you wouldn't use indexes for this at all, but just deal with the values—[value for value in a if value > 2]. Usually dealing with indexes means you're not doing something the best way.
If you do need an API similar to Matlab's, you would...
How to convert an NSString into an NSNumber
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+q Depending on the situation, non-locale-sensitive might actually be the correct way.
– Thilo
Sep 12 '11 at 6:46
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Difficulty with ng-model, ng-repeat, and inputs
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Using Angular latest version (1.2.1) and track by $index. This issue is fixed
http://jsfiddle.net/rnw3u/53/
<div ng-repeat="(i, name) in names track by $index">
Value: {{name}}
<input ng-model="names[i]">
</div>
...
jQuery table sort
...umn"/>')
.each(function(){
var th = $(this),
thIndex = th.index(),
inverse = false;
th.click(function(){
table.find('td').filter(function(){
return $(this).index() === thIndex;
}).sortElements(function(a, b){...
How can I remove an element from a list, with lodash?
...ly what I was looking for. Removing an element is trivial if you know the index, but what about when you don't know the index?
– random_user_name
Jan 19 '16 at 23:30
3
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Error Code: 1005. Can't create table '…' (errno: 150)
...me.
One of the key field that you are trying to reference does not have an index and/or is not a primary key. If one of the fields in the relationship is not a primary key, you must create an index for that field.
The foreign key name is a duplicate of an already existing key. Check that the name of...
In .NET, which loop runs faster, 'for' or 'foreach'?
...wer in general, but foreach becomes significantly slower than accessing by index. Having said that, I would still almost always prefer foreach to a for loop where it makes the code simpler - because readability is almost always important, whereas micro-optimisation rarely is.
...
Why does range(start, end) not include end?
...s which equals len(range(0, 10)). Remember that programmers prefer 0-based indexing.
Also, consider the following common code snippet:
for i in range(len(li)):
pass
Could you see that if range() went up to exactly len(li) that this would be problematic? The programmer would need to explicitl...