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问题 Having gone through multiple posts on stack I still couldn't find a right answer. Checked the documentation on CORS extension as well. I have the following server code up and running: var WebSocketServer = require("ws").Server var http = require("http") var express = require('express') var cors = require('cors') var app = express(); app.use(cors()); var port = process.env.PORT || 9000 var server = http.createServer(app) server.listen(port) var count = 0; var clients = {}; var rooms = {}; var

问题 I have a method in an assembly that looks like this: namespace MyNameSpace { public class MyClass { [Microsoft.SqlServer.Server.SqlProcedure] public static void MyMethod(SqlChars myMessage) { // Stuff here } } } I compile that to a dll and load it into my SQL Server like this: drop assembly MyAssembly create assembly MyAssemblyfrom 'C:\Scripts\MyAssembly.dll' That all works fine. But now I try to run this: CREATE PROCEDURE MySproc @message nvarchar(max) AS EXTERNAL NAME MyAssembly.

问题 Recently, we have movied to EF 6 and we have begun to use EF async commands. For example in my repository I have the following method: // Gets entities asynchron in a range starting from skip. // Take defines the maximum number of entities to be returned. public async Task<IEnumerable<TEntity>> GetRangeAsync(int skip, int take) { var entities = this.AddIncludes(this.DbContext.Set<TEntity>()) .OrderBy(this.SortSpec.PropertyName) .Skip(skip) .Take(take) .ToListAsync(); return await entities; }

问题 Trying to build a custom search using input box in datatable. Please find the fiddle version. http://jsfiddle.net/c6cu705n/ I am trying to load the table only with the value of 'San Francisco' and not with other values. tried all following option - no luck - any help would be grateful. //Option 1 $('#mytext').on('change', function () { table.columns(2).search( this.value ).draw(); }); //Option 2 $('#mytext').on('load', function () { table.columns(2).search( this.value ).draw(); }); //Option 3

问题 In a data.frame , I have a categorical variable for the language of a text. But, while most texts are only in one language, some have multiple languages. In my data, they appear in the same column, divided by comas: text = c("Text1", "Text2", "Text3") lang = c("fr", "en", "fr,en") d = data.frame(text, lang) Visually: text lang 1 Text1 fr 2 Text2 en 3 Text3 fr,en I'd like to plot the number of texts in each language, with Text3 being counted both in fr and in en . I found how to split, with: d

问题 I am struggling to simply create a folder in the users download directory on macos with this code: static func createFolderInDownloadsDirectory() { let downloadsDirectory = FileManager.default.urls(for: .downloadsDirectory, in: .userDomainMask).first! let downloadsDirectoryWithFolder = downloadsDirectory.appendingPathComponent("FolderToCreate") do { try FileManager.default.createDirectory(at: downloadsDirectoryWithFolder, withIntermediateDirectories: true, attributes: nil) } catch let error

问题 Trying to build a custom search using input box in datatable. Please find the fiddle version. http://jsfiddle.net/c6cu705n/ I am trying to load the table only with the value of 'San Francisco' and not with other values. tried all following option - no luck - any help would be grateful. //Option 1 $('#mytext').on('change', function () { table.columns(2).search( this.value ).draw(); }); //Option 2 $('#mytext').on('load', function () { table.columns(2).search( this.value ).draw(); }); //Option 3

问题 I'm a total node.js newbie who's just started tinkering with it. I have a piece of code that executes a function that processes strings on all cpu cores, and I wish to determine which worker completed the function first by it's id, and after that kill every worker (or just exit node). Here's the simplified code of my program: var cluster = require('cluster'), cpus = require("os").cpus().length, // 4 cores myArray = ["foo","bar","baz","qux"]; // 1 string per core if (cluster.isMaster) { for

问题 I thought the below command would switch bundler installation, but it actually raised an error. $ bundle _1.10.6_ -v Could not find command "_1.10.6_". $ bundle -v Bundler version 1.13.6 $ gem list | grep bundle bundler (1.13.6, 1.10.6) What should I do? 回答1: To use different gem versions, you could use this pattern: your-gem _version_ . For example, bundle _1.10.6_ -v . Hope that will help. 来源： https://stackoverflow.com/questions/41500197/how-to-switch-bundler-version

问题 I'm a total node.js newbie who's just started tinkering with it. I have a piece of code that executes a function that processes strings on all cpu cores, and I wish to determine which worker completed the function first by it's id, and after that kill every worker (or just exit node). Here's the simplified code of my program: var cluster = require('cluster'), cpus = require("os").cpus().length, // 4 cores myArray = ["foo","bar","baz","qux"]; // 1 string per core if (cluster.isMaster) { for