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8
votes
2answers
906 views

What is the justification for Python's power operator associating to the right?

I am writing code to parse mathematical expression strings, and noticed that the order in which chained power operators are evaluated in Python differs from the order in Excel. From ...
8
votes
3answers
4k views

Ordered enumeration: IEnumerable or Array (in C#)?

Typical context: I make an extension method for a collection which considers that the elements are ordered. The function starts at the beginning, at index 0, and the order has significance. Examples: ...
2
votes
1answer
100 views

Which layer should order the columns shown to the user when using MVC?

Say you want to render a table with five columns, but you want the order of the columns to be different depending on some specific parameter. This would be very easy to accomplish if the model sets ...
2
votes
1answer
628 views

Maintain ordered collection by updating as few `order` fields as possible

I'm working on integrating a reorderable lists UI widget with a Meteor.js (MongoDB, in effect) collection: { order: ???, // what type to use here? property1: ..., ... propertyN: ... } Each ...
1
vote
3answers
373 views

Is an assocative array ordered?

An associative array has many common similar names, hash, keymap, map, table, index. It's a map of keys and values but I cannot find a reputable definition of the phrase which tells me whether a map ...
1
vote
2answers
135 views

Binary Search O(log(n)) or O(n)

I see where most readings online derive that the Big-Oh notation of a Binary Search is O(log(n)), but doesn't this assume a balanced tree? What if the tree is completely unbalanced (i.e. similar to a ...
1
vote
4answers
281 views

Optimistic & Pessimistic Programming - Ensuring multiple tasks are called only once for specific record

Let's say you have 10 database records which you need to process in the following way: Start Pull 2 records from the database with the 'Processed' flag set to 'false' Call the external web service ...
1
vote
4answers
335 views

Checking for minimum number of command-line arguments, but allowing help switch

I just ran into an odd scenario. I’m sure that I must have run into the same situation in the past and yet somehow not noticed it until now. I am writing a program that requires at least two ...
1
vote
3answers
325 views

Implicitly or explicitly sorted elements?

So, I've got the following problem: I have a number of ordered elements, ordered in the following way: Type 1: Must be the first element. (only one possible, always present) Type 2: Must be the ...
1
vote
4answers
932 views

Order by different Enum property each row

So I have a list of DefaultSearchModal items that have an enum called TypeSearch in every list item. I would like to order the list to have a different enum property each row. So if you have an ...