I want to know the main difference between

`.live()` vs. `.bind()` 

methods in jQuery.



.live() vs .bind()

I&#39;m trying to create a click event be able to delete an item on my list, but when I click it I get &quot;TypeError: Cannot read property &#39;props&#39; of undefined&quot;.

I&#39;m trying to stick to ES6 as much as possible, and I&#39;m pretty sure its something to do binding &#39;this&#39; somewhere, but I&#39;ve tried many places and been unsuccessful.

    import React, { Component } from &#39;react&#39;;
    import &#39;./App.css&#39;;
    
    class App extends Component {
        render() {
            return (
                &lt;div className=&quot;App&quot;&gt;
                    &lt;StreetFighter /&gt;
                &lt;/div&gt;
            );
        }
    }
    
    class StreetFighter extends Component {
        constructor(props) {
            super(props);
            this.state = {
                characters: [
                    &#39;Chun-Li&#39;,
                    &#39;Guile&#39;,
                    &#39;Ryu&#39;,
                    &#39;Ken&#39;,
                    &#39;E.Honda&#39;,
                    &#39;Dhalsim&#39;,
                ],
            };
        }
        render() {
            let characters = this.state.characters;
            characters = characters.map((char, index) =&gt; {
                return (
                    &lt;Character char={char} key={index} onDelete={this.onDelete} /&gt;
                );
            });
            return (
                &lt;div&gt;
                    &lt;p&gt;Street Fighter Characters&lt;/p&gt;
                    &lt;ul&gt;{characters}&lt;/ul&gt;
                &lt;/div&gt;
            );
        }
        onDelete(chosenCharacter) {
            let updatedCharactersList = this.state.characters.filter(
                (char, index) =&gt; {
                    return chosenCharacter !== char;
                }
            );

            this.setState({
                characters: updatedCharactersList,
            });
        }
    }
    
    class Character extends Component {
        render() {
            return (
                &lt;li&gt;
                    &lt;div className=&quot;character&quot;&gt;
                        &lt;span className=&quot;character-name&quot;&gt;{this.props.char}&lt;/span&gt;
                        &lt;span
                            className=&quot;character-delete&quot;
                            onClick={this.handleDelete}
                            &gt; x &lt;/span&gt;
                    &lt;/div&gt;
                &lt;/li&gt;
            )
        };
    
        handleDelete() {
            this.props.onDelete(this.props.char);
        }
    }
    
    
    export default App;



React - TypeError: Cannot read property &#39;props&#39; of undefined

I need to be able to run a function after a selection in made in a `&lt;select&gt;`.  The issue is I&#39;m also binding with @bind and I get a error when I try to use @onchange stating that it is already in use by the @bind.  I tried using @onselectionchange, but that does nothing(doesn&#39;t run the function).  I could forget the @bind and just assign @onchange to a function, but I&#39;m not sure how to pass the selected value to the function. 

I have the following code:

    &lt;select @bind=&quot;@SelectedCustID&quot; @ @onchange=&quot;@CustChanged&quot; class=&quot;form-control&quot;&gt;
        @foreach (KeyGuidPair i in CustList)
        {
            &lt;option value=&quot;@i.Value&quot;&gt;@i.Text&lt;/option&gt;
        }
    &lt;/select&gt;

Thanks.

Blazor: How to use the onchange event in &lt;select&gt; when using @bind also?

When I run `docker-compose up` in my Docker project it failes with the following message:

    Error starting userland proxy: listen tcp 0.0.0.0:3000: bind: address already in use

`netstat -pna | grep 3000`
shows this:

    tcp        0      0 0.0.0.0:3000            0.0.0.0:*               LISTEN      -  

I&#39;ve already tried `docker-compose down`, but it doesn&#39;t help.

Docker Error bind: address already in use

In JavaScript, what is the best way to remove a function added as an event listener using bind()?

Example

    (function(){
    
        // constructor
        MyClass = function() {
            this.myButton = document.getElementById(&quot;myButtonID&quot;);
            this.myButton.addEventListener(&quot;click&quot;, this.clickListener.bind(this));
        };
        
        MyClass.prototype.clickListener = function(event) {
            console.log(this); // must be MyClass
        };
        
        // public method
        MyClass.prototype.disableButton = function() {
            this.myButton.removeEventListener(&quot;click&quot;, ___________);
        };
    
    })();

The only way I can think of is to keep track of every listener added with bind.

Above example with this method:

    (function(){
    
        // constructor
        MyClass = function() {
            this.myButton = document.getElementById(&quot;myButtonID&quot;);
            this.clickListenerBind = this.clickListener.bind(this);
            this.myButton.addEventListener(&quot;click&quot;, this.clickListenerBind);
        };
        
        MyClass.prototype.clickListener = function(event) {
            console.log(this); // must be MyClass
        };
        
        // public method
        MyClass.prototype.disableButton = function() {
            this.myButton.removeEventListener(&quot;click&quot;, this.clickListenerBind);
        };
    
    })();

Are there any better ways to do this?

Removing event listener which was added with bind

What is the use of `bind()` in JavaScript?

What is the use of the JavaScript &#39;bind&#39; method?

I have this simple scenario:  

Input element which value is changed by jQuery&#39;s val() method.

I am trying to update the angular model with the value that jQuery set. I tried to write a simple directive, but it&#39;s not doing what I want. 

Here&#39;s the directive:

    var myApp = angular.module(&#39;myApp&#39;, []);
    myApp.directive(&#39;testChange&#39;, function() {
        return function(scope, element, attrs) {        
            element.bind(&#39;change&#39;, function() {
                console.log(&#39;value changed&#39;);
            })
        }
    })

this is the jQuery part:  

    $(function(){
        $(&#39;button&#39;).click(function(){
            $(&#39;input&#39;).val(&#39;xxx&#39;);
        })
    })

and html:

    &lt;div ng-app=&quot;myApp&quot;&gt;
        &lt;div ng-controller=&quot;MyCtrl&quot;&gt;
            &lt;input test-change ng-model=&quot;foo&quot; /&gt;
            &lt;span&gt;{{foo}}&lt;/span&gt;
        &lt;/div&gt;
    &lt;/div&gt;

    &lt;button&gt;clickme&lt;/button&gt;

Here is the fiddle with my try:  
http://jsfiddle.net/U3pVM/743/

Can someone please point me in the right direction? 

Update Angular model after setting input value with jQuery

With jQuery, how do I find out which key was pressed when I bind to the keypress event?

    $(&#39;#searchbox input&#39;).bind(&#39;keypress&#39;, function(e) {});

I want to trigger a submit when &lt;kbd&gt;ENTER&lt;/kbd&gt; is pressed.


**[Update]**

Even though I found the (or better: one) answer myself, there seems to be some room for variation ;)

Is there a difference between `keyCode` and `which` - especially if I&#39;m just looking for &lt;kbd&gt;ENTER&lt;/kbd&gt;, which will never be a unicode key?

Do some browsers provide one property and others provide the other one? 

jQuery Event Keypress: Which key was pressed?

I want to bind an onclick event to an element I insert dynamically with jQuery

But It never runs the binded function. I&#39;d be happy if you can point out why this example is not working and how I can get it to run properly:

        

&lt;!-- begin snippet: js hide: false console: true babel: false --&gt;

&lt;!-- language: lang-html --&gt;

    &lt;!DOCTYPE html PUBLIC &quot;-//W3C//DTD XHTML 1.0 Transitional//EN&quot;        
                &quot;http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd&quot;&gt;
            &lt;html xmlns=&quot;http://www.w3.org/1999/xhtml&quot; xml:lang=&quot;da&quot; lang=&quot;da&quot;&gt;
            &lt;head&gt;
              &lt;title&gt;test of click binding&lt;/title&gt;

    &lt;script src=&quot;https://code.jquery.com/jquery-1.12.4.min.js&quot;&gt;&lt;/script&gt;
              &lt;script type=&quot;text/javascript&quot;&gt;


            jQuery(function(){
              close_link = $(&#39;&lt;a class=&quot;&quot; href=&quot;#&quot;&gt;Click here to see an alert&lt;/a&gt;&#39;);
              close_link.bind(&quot;click&quot;, function(){
                alert(&#39;hello from binded function call&#39;);
                //do stuff here...
              });
      
              $(&#39;.add_to_this&#39;).append(close_link);
            });
              &lt;/script&gt;
            &lt;/head&gt;
            &lt;body&gt;
              &lt;h1 &gt;Test of click binding&lt;/h1&gt;
              &lt;p&gt;problem: to bind a click event to an element I append via JQuery.&lt;/p&gt;

              &lt;div class=&quot;add_to_this&quot;&gt;
                &lt;p&gt;The link is created, then added here below:&lt;/p&gt;
              &lt;/div&gt;

              &lt;div class=&quot;add_to_this&quot;&gt;
                &lt;p&gt;Another is added here below:&lt;/p&gt;
              &lt;/div&gt;


            &lt;/body&gt;
            &lt;/html&gt;

&lt;!-- end snippet --&gt;

**EDIT: I edited the example to contain two elements the method is inserted to.** In that case, the `alert()` call is never executed. (thanks to @Daff for pointing that out in a comment)

jQuery how to bind onclick event to dynamically added HTML element

In Python, is there a way to bind an unbound method without calling it?

I am writing a wxPython program, and for a certain class I decided it&#39;d be nice to group the data of all of my buttons together as a class-level list of tuples, like so:

    class MyWidget(wx.Window):
        buttons = [(&quot;OK&quot;, OnOK),
                   (&quot;Cancel&quot;, OnCancel)]
     
        # ...
 
        def Setup(self):
            for text, handler in MyWidget.buttons:
    
                # This following line is the problem line.
                b = wx.Button(parent, label=text).Bind(wx.EVT_BUTTON, handler)

The problem is, since all of the values of `handler` are unbound methods, my program explodes in a spectacular blaze and I weep.

I was looking around online for a solution to what seems like should be a relatively straightforward, solvable problem. Unfortunately I couldn&#39;t find anything. Right now, I&#39;m using `functools.partial` to work around this, but does anyone know if there&#39;s a clean-feeling, healthy, Pythonic way to bind an unbound method to an instance and continue passing it around without calling it?

Python: Bind an Unbound Method?

I&#39;m trying to run my Spring Boot application on Java 9, and I&#39;ve faced with JAXB problem, which described in the guides, but didn&#39;t work for me. I&#39;ve added dependency on JAXB api, and application started working.
If you get the following exception, as a result of missing JAXB missing implementation using Java version &gt;=9:

    javax.xml.bind.JAXBException: Implementation of JAXB-API has not been found on module path or classpath.
    	at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:177) ~[jaxb-api-2.3.0.jar:2.3.0]
    	at javax.xml.bind.ContextFinder.find(ContextFinder.java:364) ~[jaxb-api-2.3.0.jar:2.3.0]
    	at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:508) ~[jaxb-api-2.3.0.jar:2.3.0]
    	at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:465) ~[jaxb-api-2.3.0.jar:2.3.0]
    	at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:366) ~[jaxb-api-2.3.0.jar:2.3.0]
    	at com.sun.jersey.server.impl.wadl.WadlApplicationContextImpl.&lt;init&gt;(WadlApplicationContextImpl.java:107) ~[jersey-server-1.19.1.jar:1.19.1]
    	at com.sun.jersey.server.impl.wadl.WadlFactory.init(WadlFactory.java:100) [jersey-server-1.19.1.jar:1.19.1]
    	at com.sun.jersey.server.impl.application.RootResourceUriRules.initWadl(RootResourceUriRules.java:169) [jersey-server-1.19.1.jar:1.19.1]
    	at com.sun.jersey.server.impl.application.RootResourceUriRules.&lt;init&gt;(RootResourceUriRules.java:106) [jersey-server-1.19.1.jar:1.19.1]
    	at com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1359) [jersey-server-1.19.1.jar:1.19.1]
    	at com.sun.jersey.server.impl.application.WebApplicationImpl.access$700(WebApplicationImpl.java:180) [jersey-server-1.19.1.jar:1.19.1]
    	at com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:799) [jersey-server-1.19.1.jar:1.19.1]
    	at com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:795) [jersey-server-1.19.1.jar:1.19.1]
    	at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:193) [jersey-core-1.19.1.jar:1.19.1]
    	at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:795) [jersey-server-1.19.1.jar:1.19.1]
    	at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:790) [jersey-server-1.19.1.jar:1.19.1]
    	at com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:509) [jersey-servlet-1.19.1.jar:1.19.1]
    	at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:339) [jersey-servlet-1.19.1.jar:1.19.1]
    	at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:605) [jersey-servlet-1.19.1.jar:1.19.1]
    	at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:207) [jersey-servlet-1.19.1.jar:1.19.1]
    	at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:394) [jersey-servlet-1.19.1.jar:1.19.1]
    	at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:744) [jersey-servlet-1.19.1.jar:1.19.1]
    	at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:270) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.core.ApplicationFilterConfig.&lt;init&gt;(ApplicationFilterConfig.java:106) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4491) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5135) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1427) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1417) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) [na:na]
    	at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) [na:na]
    	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:943) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:839) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1427) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1417) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) [na:na]
    	at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140) [na:na]
    	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:943) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:258) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.apache.catalina.startup.Tomcat.start(Tomcat.java:371) [tomcat-embed-core-9.0.10.jar:9.0.10]
    	at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:107) [spring-boot-2.1.0.M1.jar:2.1.0.M1]
    	at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.&lt;init&gt;(TomcatWebServer.java:86) [spring-boot-2.1.0.M1.jar:2.1.0.M1]
    	at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:413) [spring-boot-2.1.0.M1.jar:2.1.0.M1]
    	at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:174) [spring-boot-2.1.0.M1.jar:2.1.0.M1]
    	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:179) [spring-boot-2.1.0.M1.jar:2.1.0.M1]
    	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:152) [spring-boot-2.1.0.M1.jar:2.1.0.M1]
    	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) [spring-context-5.1.0.RC1.jar:5.1.0.RC1]
    	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) [spring-boot-2.1.0.M1.jar:2.1.0.M1]
    	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:769) [spring-boot-2.1.0.M1.jar:2.1.0.M1]
    	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:405) [spring-boot-2.1.0.M1.jar:2.1.0.M1]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:334) [spring-boot-2.1.0.M1.jar:2.1.0.M1]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1252) [spring-boot-2.1.0.M1.jar:2.1.0.M1]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1240) [spring-boot-2.1.0.M1.jar:2.1.0.M1]
    	at io.eureka.server.EurekaServerApp.main(EurekaServerApp.java:21) [classes/:na]
    	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
    	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
    	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
    	at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]
    	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.1.0.M1.jar:2.1.0.M1]
    Caused by: java.lang.ClassNotFoundException: com.sun.xml.internal.bind.v2.ContextFactory
    	at org.springframework.boot.web.embedded.tomcat.TomcatEmbeddedWebappClassLoader.loadClass(TomcatEmbeddedWebappClassLoader.java:70) ~[spring-boot-2.1.0.M1.jar:2.1.0.M1]
    	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1138) ~[tomcat-embed-core-9.0.10.jar:9.0.10]
    	at javax.xml.bind.ServiceLoaderUtil.nullSafeLoadClass(ServiceLoaderUtil.java:122) ~[jaxb-api-2.3.0.jar:2.3.0]
    	at javax.xml.bind.ServiceLoaderUtil.safeLoadClass(ServiceLoaderUtil.java:155) ~[jaxb-api-2.3.0.jar:2.3.0]
    	at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:174) ~[jaxb-api-2.3.0.jar:2.3.0]
    	... 66 common frames omitted



javax.xml.bind.JAXBException Implementation of JAXB-API has not been found on module path or classpath

I am using multicast UDP between hosts that have multiple network interfaces.
I am using boost::asio, and am confused by the 2 operations receivers have to make: bind, then join-group.

Why do you need to specify the local address of an interface, during bind, when you do that with every multicast group that you join?

The sister-question regards the multicast port: Since during sending, you send to a multicast address &amp; port, why, during subscription to a multicast group, you only specify the address, not the port - the port being specified in the confusing call to bind.


Note: the &quot;join-group&quot; is a wrapper over `setsockopt(IP_ADD_MEMBERSHIP)`, which as documented, may be called multiple times on the same socket to subscribe to different groups (over different networks?). It would therefore make perfect sense to ditch the bind call and specify the port every time I subscribe to a group.

From what I see, always binding to &quot;0.0.0.0&quot; and specifying the interface address when joining the group, works very well. Confused.

What does it mean to bind a multicast (UDP) socket?

Before C++11 I used `boost::bind` or `boost::lambda` a lot. The `bind` part made it into the standard library (`std::bind`) the other part became part of the core language (C++ lambdas) and made the use of lambdas a lot easier. Nowadays, I hardly use `std::bind`, since I can do almost anything with C++ lambdas. There&#39;s one valid use-case for `std::bind` that I can think of:

    struct foo
    {
      template &lt; typename A, typename B &gt;
      void operator()(A a, B b)
      {
        cout &lt;&lt; a &lt;&lt; &#39; &#39; &lt;&lt; b;
      }
    };

    auto f = bind(foo(), _1, _2);
    f( &quot;test&quot;, 1.2f ); // will print &quot;test 1.2&quot;

The C++14 equivalent for that would be 

    auto f = []( auto a, auto b ){ cout &lt;&lt; a &lt;&lt; &#39; &#39; &lt;&lt; b; }
    f( &quot;test&quot;, 1.2f ); // will print &quot;test 1.2&quot;

Much shorter and more concise. (In C++11 this does not work yet because of the auto parameters.) Is there any other valid use case for `std::bind` beating the C++ lambdas alternative or is `std::bind` superfluous with C++14?

Why use std::bind over lambdas in C++14?

I have been studying Haskell for several weeks now (just for fun) and just watched Brian Beckman&#39;s great [video introducing monads](https://www.youtube.com/watch?v=ZhuHCtR3xq8).  He motivates monads with the need to create a more general composition operator.  Following this line of thought, if I have two functions:
```
f :: a -&gt; b
g :: b -&gt; c
```
the composition operator should satisfy
```
h = g . f :: a -&gt; c
```
and from this I can infer the correct type of the `.` operator:
```
(.) : (b -&gt; c) -&gt; (a -&gt; b) -&gt; (a -&gt; c)
```

When it comes to monads, suppose I have two functions:
```
f :: a -&gt; m b
g :: b -&gt; m c
```
It seems to me that the natural choice would have been to define a generalized composition operator that works as follows:
```
h = f &gt;&gt;= g :: a -&gt; m c
```
in which case the `&gt;&gt;=` operator would have a type signature of:
```
(&gt;&gt;=) :: (a -&gt; m b) -&gt; (b -&gt; m c) -&gt; (a -&gt; m c)
```
But actually the operator seems to be defined so that
```
h a = (f a) &gt;&gt;= g :: m c
```
and thus
```
(&gt;&gt;=) : m b -&gt; (b -&gt; m c) -&gt; m c
```
Could someone explain the reasoning behind this choice of definition for bind?  I assume there is some simple connection between the two choices where one can be expressed in terms of the other, but I&#39;m not seeing it at the moment.

Why is the bind operator (&gt;&gt;=) defined as it is?

I&#39;m curious to know the differences between the bind and live functions.

To me they seem to be almost identical.

I read [the benefits of live/bind methods][1], but it didn&#39;t tell me about the differences...


  [1]: https://stackoverflow.com/questions/748076/using-live-benefits-similar-to-bind

Thanks!

What is the difference between the bind and live methods in jQuery?

I have a question about which style is preferred: std::bind Vs lambda in C++0x. I know that they serve -somehow- different purposes but lets take an example of intersecting functionality.

Using `lambda`:

    uniform_int&lt;&gt; distribution(1, 6);
    mt19937 engine;
    // lambda style
    auto dice = [&amp;]() { return distribution(engine); };
Using `bind`:

    uniform_int&lt;&gt; distribution(1, 6);
    mt19937 engine;
    // bind style
    auto dice = bind(distribution, engine);

Which one should we prefer? why? assuming more complex situations compared to the mentioned example. i.e. What are the advantages/disadvantages of one over the other?

Bind Vs Lambda?

Can anyone show me some absolutely minimal ASP.NET code to understand `Eval()` and `Bind()`?

It is best if you provide me with two separate code-snippets or may be web-links.



Understanding ASP.NET Eval() and Bind()

I wanted to know the exact function of bind() in TCP. What does it mean by &#39;binding&#39; a local address to the socket? If it&#39;s assigning a port number to the socket, then why don&#39;t we use it in the client? I know that port is assigned by OS automatically in the client side, but I&#39;m not getting the big picture of how all of this works.

After bind(), we listen(). How is the bind related to listen()? Will the listen() know that bind() has been executed? If so, what changes does bind() make so that it is known? I mean, how does returning zero for successful execution help?

I&#39;ve gone through many definitions, but no where I could get all of this in detail. So if anyone can please explain this to me, I will be grateful.

Why is bind() used in TCP? Why is it used only on server side and not in client side?

When I&#39;m trying to set up a socket server, I&#39;ve got an error message:

    Exception in thread &quot;main&quot; java.net.BindException: Cannot assign requested address: JVM_Bind
    	at java.net.PlainSocketImpl.socketBind(Native Method)
    	at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:383)
    	at java.net.ServerSocket.bind(ServerSocket.java:328)
    	at java.net.ServerSocket.&lt;init&gt;(ServerSocket.java:194)
    	at java.net.ServerSocket.&lt;init&gt;(ServerSocket.java:106)
    	at socketyserver.SocketyServer.main(SocketyServer.java:12)
    Java Result: 1

Whole code is simplest as it can be:

    public static void main(String[] args) throws UnknownHostException, IOException
    {
        ServerSocket serverSocket;
        serverSocket = new ServerSocket(9999);
    }

I&#39;m 100% sure that my ports are forwarded, Windows Firewall is off. Nothing blocks port 9999. What else can go wrong?

All Bind Solutions on Gang of Coders

Total of 19 Bind Solutions