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Return all enumerables with yield return at once; without looping through
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It's definitely not a stupid question, and it's something that F# supports with yield! for a whole collection vs yield for a single item. (That can be very useful in terms of tail recursion...)
Unfortunately it's not supported in C#.
However, if you have several...
搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
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#使用admin数据库
use admin
#定义副本集配置
config = { _id:"shard1", members:[
{_id:0,host:"192.168.0.136:22001"},
{_id:1,host:"192.168.0.137:22001"},
{_id:2,host:"192.168.0.138:22001",arbiterOnly:true}
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Android Left to Right slide animation
...e launch modes are single instance.
Using onfling() , I swing them left and right.
9 Answers
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Prevent segue in prepareForSegue method?
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It's possible in iOS 6 and later:
You have to implement the method
- (BOOL)shouldPerformSegueWithIdentifier:(NSString *)identifier sender:(id)sender
In your view controller. You do your validation there, and if it's OK then return YES; if it's...
How to import data from mongodb to pandas?
...llection in mongodb which I need to analyze. How do i import that data to pandas?
12 Answers
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Creating a simple XML file using python
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These days, the most popular (and very simple) option is the ElementTree API,
which has been included in the standard library since Python 2.5.
The available options for that are:
ElementTree (Basic, pure-Python implementation of ElementTree. Part of ...
KnockOutJS - Multiple ViewModels in a single View
I'm thinking that my application is getting quite large now, too large to handle each View with a single ViewModel.
5 Answe...
How do I clear this setInterval inside a function?
Normally, I’d set the interval to a variable and then clear it like var the_int = setInterval(); clearInterval(the_int); but for my code to work I put it in an anonymous function:
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Create a CSS rule / class with jQuery at runtime
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You can create style element and insert it into DOM
$("<style type='text/css'> .redbold{ color:#f00; font-weight:bold;} </style>").appendTo("head");
$("<div/>").addClass("redbold").text("SOME NEW TEXT").appendTo("body");
tested on Op...
How do I verify jQuery AJAX events with Jasmine?
...DD specs for basic jQuery AJAX requests. I am currently using Jasmine in standalone mode (i.e. through SpecRunner.html ). I have configured SpecRunner to load jquery and other .js files. Any ideas why the following doesn't work? has_returned does not become true, even thought the "yuppi!" alert sho...