大约有 30,000 项符合查询结果(耗时:0.0360秒) [XML]

https://stackoverflow.com/ques... 

Python group by

... @Kourosh - Post as a new question, but be sure to indicate what you mean by "get rid of items and type in my result", and "without dealing with dictionaries". – PaulMcG Nov 26 '18 at 5:58 ...
https://stackoverflow.com/ques... 

Javascript - remove an array item by value [duplicate]

...se JavaScript's Array splice method: var tag_story = [1,3,56,6,8,90], id_tag = 90, position = tag_story.indexOf(id_tag); if ( ~position ) tag_story.splice(position, 1); P.S. For an explanation of that cool ~ tilde shortcut, see this post: Using a ~ tilde with indexOf to check for the ex...
https://stackoverflow.com/ques... 

ViewParam vs @ManagedProperty(value = “#{param.id}”)

...ditional <f:event type="preRenderView" listener="#{bean.init}" /> inside the <f:metadata> to do initialization/preloading based on the set values. Since JSF 2.2 you could use <f:viewAction> for that instead. Allows for nested <f:converter> and <f:validator> for more fi...
https://stackoverflow.com/ques... 

C# version of java's synchronized keyword?

...sker's question, then we are talking about instance methods. Using static means that if thread 1 calls instance1.DoSomething() and thread 2 calls instance2.DoSomething, the second call will block even though it is a completely different object. thread2's call shouldn't block unless someone is call...
https://stackoverflow.com/ques... 

Regular Expression to match string starting with “stop”

...imit the regular expression (i.e. they are not part of the Regex per se) ^ means match at the beginning of the line . followed by * means match any character (.), any number of times (*) $ means to the end of the line If you would like to enforce that stop be followed by a whitespace, you could mo...
https://stackoverflow.com/ques... 

Mongoose, Select a specific field with find

... The _id field is always present unless you explicitly exclude it. Do so using the - syntax: exports.someValue = function(req, res, next) { //query with mongoose var query = dbSchemas.SomeValue.find({}).select('name -_id')...
https://stackoverflow.com/ques... 

ASP.NET MVC Yes/No Radio Buttons with Strongly Bound Model MVC

...</legend> @Html.RadioButtonFor(e => e.IsMarried, true, new { id = "married-true" }) @Html.Label("married-true", "Yes") @Html.RadioButtonFor(e => e.IsMarried, false, new { id = "married-false" }) @Html.Label("married-false", "No") </fieldset> You can add a @check...
https://stackoverflow.com/ques... 

ssh “permissions are too open” error

... Keys need to be only readable by you: chmod 400 ~/.ssh/id_rsa If Keys need to be read-writable by you: chmod 600 ~/.ssh/id_rsa 600 appears to be fine as well (in fact better in most cases, because you don't need to change file permissions later to edit it). The relevant por...
https://stackoverflow.com/ques... 

What is scope/named_scope in rails?

... active record is like class methods but they return Relation object which means you can call another scope or active record querying method on it. For example, if you have a Zombie model (zombies table) with below mentioned scope methods, class Zombie scope :rotting, -> { where(rotting: true...
https://stackoverflow.com/ques... 

Parallel.ForEach vs Task.Run and Task.WhenAll

... You mean when the first "DoSomethingAsync()" is called? – Vinicius Gualberto Apr 25 '18 at 5:23 1 ...