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I am trying to get SignalR to work with custom JsonSerializerSettings for its payload, specifically I'm trying to set ... .All }); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How can I call a function of a C++ DLL that accepts a parameter of type stringstream from C#?

I want to import an unmanaged C++ DLL and call a function that takes stringstream as a parameter. In C#, there ... a function from a C# program? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Deduction guides and variadic class templates with variadic template constructors - mismatched argument pack lengths

Consider the following class definition and deduction guide: template <typename... Ts> struct foo : Ts... { template ... Is my code ill-formed? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to make jQuery 1.7 .on() hover?

I'm having a problem with dynamically created elements on hover state. When I hover on newly created html element ... http://jsfiddle.net/BQ2FA/ See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - window.open behaviour in chrome tabs/windows

I have a small bit of javascript intended to open two or more tabs. This works fine in FF and IE, but chrome ... window.open(sites[i].Url); } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript numbers- immutable

I come from c# background where immutable is achieved with public get ,private set properties. I have read that ... I thought I couldn't? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language features - Python intern for non-strings

Why is Python's intern built-in only for strings? It should be possible to extend intern to classes that are hashable and comparable, right? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Python Tkinter Label redrawing every 10 seconds

I have this following Python Tkinter code which redraw the label every 10 second. My question is , to me it ... cases i could use threading? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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excel - Countif With Multiple OR Criteria

I need to count the number of cells in a column which contain a specific value. I am currently using the ... cells contain either SAL, or PRE See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - LINQ to Entities does not recognize the method 'System.String[] Split(Char[])' method,

I am trying to implement a method where the keywords stored in the database for an activity (split by a ... translated into a store expression. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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seo - Do Google or other search engines execute JavaScript?

I am just wondering if Google or other search engines execute JavaScript on your web page. For example, if ... Google search engine see that? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Excluding specific items in a collection when serializing to JSON

I am trying to "cherry-pick" which objects in a collection of a specific type I want to serialize. Example setup: ... How would I go about this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql server - SQL to find first non-numeric character in a string

I inherited a table with identifiers in a format [nonnumericprefix][number]. For example (ABC123; R2D2456778; etc). I ... I'd post it here. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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algorithm - Linked list partition function and reversed results

I wrote this F# function to partition a list up to a certain point and no further -- much like a cross ... list be in the correct order? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Can you use C++ DLLs in C# code in a UWP?

I wrote a C++ Class Library in Visual Studio that just defines a function that invokes some Python: #pragma once ... the error still comes up. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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asp.net - ASP .NET Custom RoleProvider not respecting cacheRolesInCookie="true"

I've implemented a custom role provider, and configured it in my web.config file like this: <roleManager enabled="true ... Any ideas as to why? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Compute the minimum of a pair of vectors

If I have a vector c(1,2,3) and another vector of the same length c(1,4,1) . Is there some way ... looping through them would take a long time. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angularjs unable to find templates directory, flask as backend

I am using flask as backend and angularjs on client-side my directory structure: dew: ->app.py ->templates - ... .html, template not found error See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android firebase - get childrens count

Here is my Firebase data { "ques": { "Chemistry": {}, "Countries": {}, "Film": {}, "Geography": {}, "General ... }); So.. How to implement it?? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Propagate an optional through a function (or Init) in Swift

does anyone have a (better) way to do this? Lets say I have a optional Float let f: Float? = 2 Now ... ideas will be much appreciated. Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How does python's time.time() method work?

The time.time() method provides you the timestamp which is basically the time elapsed since epoch(which is in ... from the underlying platform? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - Why can't I access the array with index directly?

I got confused when I was trying to access an array element directly with its index. I guess I could ... ( $arrOfObj['m_strEmailAddress'] ); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to continue insertion after duplicate key error using PyMongo

If I need to insert a document in MongoDB if it does not exist yet db_stock.update_one(document, {'$set': ... of seconds, not minutes/hours? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - Chart.js not showing in Angular2 if it doesn't exist on the main page

It seems fine whenever I dump the chart to the main app.component.html, but as soon as I use it in a child ... ; lineChart.Line(data,opts); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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selenium - How to Set capability for IE browser to run in Headless mode

I want to run the scripts in Headless mode for all the 3 browsers Chrome, Firefox & IE The following is the ... to execute in IE with options See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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511 views

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Dynamic conversion of string into column name. MySQL

I have two tables: items and orders items -------------- id (int) | type_1 (int) | type_2 (int)| ... id=1, cannot be converted into column name. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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646 views

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javascript - Knockout JS - How to correctly bind an observableArray

Please take a look at this example. http://jsfiddle.net/LdeWK/2/ I want to know how to bind values ... work with just observable array. Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - Using GCM to send notifications on app, returns InvalidRegistration error

I'm trying to send a notification using GCM on my android device, but I always get InvalidRegistration error ... error":"InvalidRegistration"}]} See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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