idioms

相关标签：javascript jquery android 多少钱 iPhone

In Ruby, is there a method similar to `any?` which returns the matching item (rather than `true`)

>> [1, 2, 3, 4, 5].any? {开发者_StackOverflow社区|n| n % 3 == 0} => true What if I want to know which item matched, not just whether an item matched? I\'m only interested in short-circuitin[详细]

2023-04-12 22:29 分类：问答
Using nnet for prediction, am i doing it right?

I\'m still pretty new to R and AI / ML techniques. I would like to use a neural net for prediction, and since I\'m new I would just like to see if this is how it should be done.[详细]

2023-04-12 08:36 分类：问答
Idiomatic use of parentheses in Ruby

array.include? \'foo\' or array.include? \'bar\' is a syntax error (unexpect开发者_如何学Goed keyword_or). Parentheses solve the problem, but as I\'m new to Ruby I\'ve no idea which of the following[详细]

2023-04-11 16:24 分类：问答
What's the idiomatic python equivalent of get() for lists?

Calling get(key) on a dictionary will return None by default if the key isn\'t present in a dictionary.What is the idiomatic equivalent for a list, such that if a list is of at least size of the pa开发[详细]

2023-04-11 12:25 分类：问答
Test for list membership and get index at the same time in Python

It seems silly to write the following: L = [] if x in L: L[x] = something else: L[x] = something_else Doesn\'t this perform the look-up for x twice?I tried using index(), but th开发者_运维技巧is g[详细]

2023-04-11 03:14 分类：问答
Is there a Java convention for returning true, false, or unknown?

I am writing a method which will return if something is true or not. But if the resources needed to test the condition are not available, it will not be able to return true or false.[详细]

2023-04-11 03:11 分类：问答
Elegant way to remove contiguous repeated elements in a list [closed]

Closed. This questio开发者_StackOverflown is opinion-based. It is not currently accepting answers.[详细]

2023-04-10 03:38 分类：问答
Camel idiom to route dynamically based on the value in the body of the message

Suppose you have a route like: from(\"direct:start\").to(\"http://some.endpoint/accounts/\"); where message passed through direct:start is an XML:[详细]

2023-04-07 09:34 分类：问答
Optionally taking the first item in a sequence

I need a function like Seq.head, but returning None instead of throwing an exception when the sequence is empty, i.e., seq<\'T> -> \'T option.[详细]

2023-04-06 17:31 分类：问答
Is this a good structure for my jQuery scripts?

I want to keep my scripts organized in one .js file for all my site (I have a mess right now), something like namespaces and classes in C#...[详细]

2023-04-06 16:05 分类：问答