首页 \ 问答 \ Javascript事件处理历史[关闭](Javascript Event handling history [closed])

Javascript事件处理历史[关闭](Javascript Event handling history [closed])

 虽然我确实理解Javascript事件的处理方式，但我想了解它背后的完整历史，比如事件处理是如何实际实现的（可能在标记中使用它，如<a onClick="callFunc()"> ）  
 以及它如何更新到其他东西，比如从JS调用它（不显眼的JS）  
 现在如何使用jQuery实现它？  
 我只是想了解每个阶段的优势以及事件冒泡/捕获等事情 

While I do understand Javascript event handling in bits and pieces, I wanted to understand the complete history behind it, like how event handling was actually implemented (may be using it within the markup like <a onClick="callFunc()"> ) 
And how it later got updated to something else like calling it from JS (unobtrusive JS) 
to how it is implemented now using jQuery ? 
I just wanted to understand the advantages at each stage and things like event bubbling/capturing, etc 

原文：https://stackoverflow.com/questions/14931727

更新时间：2023-05-29 18:05

最满意答案

 我使用过滤器属性来装饰我想要向Simple Auth公开的动作。 我不记得我从哪里得到这个代码（可能stackoverflow我只是没有链接所以我不能声称它的功劳）  
public class BasicHttpAuthorizeAttribute : AuthorizeAttribute
    { 
protected override bool IsAuthorized(HttpActionContext actionContext)
        {
            if (Thread.CurrentPrincipal.Identity.Name.Length == 0)
            { 
                // Get the header value
                AuthenticationHeaderValue auth = actionContext.Request.Headers.Authorization;
                // ensure its schema is correct
                if (auth != null && string.Compare(auth.Scheme, "Basic", StringComparison.OrdinalIgnoreCase) == 0)
                {
                    // get the credientials
                    string credentials = UTF8Encoding.UTF8.GetString(Convert.FromBase64String(auth.Parameter));
                    int separatorIndex = credentials.IndexOf(':');
                    if (separatorIndex >= 0)
                    {
                        // get user and password
                        string passedUserName = credentials.Substring(0, separatorIndex);
                        string passedPassword = credentials.Substring(separatorIndex + 1);
                        SimpleAES crypto = new SimpleAES();
                        string userName = crypto.DecryptString(ConfigurationManager.AppSettings.Get(Constants.SIMPLEUSERNAME));
                        string password = crypto.DecryptString(ConfigurationManager.AppSettings.Get(Constants.SIMPLEUSERPASSWORD));

                        // validate
                        if (passedUserName == userName && passedPassword == password)
                        {
                            Thread.CurrentPrincipal = actionContext.ControllerContext.RequestContext.Principal = new GenericPrincipal(new GenericIdentity(userName, "Basic"), new string[] { });
                        }
                    }
                }
            }
            return base.IsAuthorized(actionContext);
        }
    }
 
 然后我就这样使用它  
[BasicHttpAuthorize]
public HttpResponseMessage MyExposedSimpleAuthAction()

I us a filter attribute to adorn the actions i wanted to expose to Simple Auth. I cant remember where i got this code from (probably stackoverflow i just don't have the link so i cant claim credit for it) 
public class BasicHttpAuthorizeAttribute : AuthorizeAttribute
    { 
protected override bool IsAuthorized(HttpActionContext actionContext)
        {
            if (Thread.CurrentPrincipal.Identity.Name.Length == 0)
            { 
                // Get the header value
                AuthenticationHeaderValue auth = actionContext.Request.Headers.Authorization;
                // ensure its schema is correct
                if (auth != null && string.Compare(auth.Scheme, "Basic", StringComparison.OrdinalIgnoreCase) == 0)
                {
                    // get the credientials
                    string credentials = UTF8Encoding.UTF8.GetString(Convert.FromBase64String(auth.Parameter));
                    int separatorIndex = credentials.IndexOf(':');
                    if (separatorIndex >= 0)
                    {
                        // get user and password
                        string passedUserName = credentials.Substring(0, separatorIndex);
                        string passedPassword = credentials.Substring(separatorIndex + 1);
                        SimpleAES crypto = new SimpleAES();
                        string userName = crypto.DecryptString(ConfigurationManager.AppSettings.Get(Constants.SIMPLEUSERNAME));
                        string password = crypto.DecryptString(ConfigurationManager.AppSettings.Get(Constants.SIMPLEUSERPASSWORD));

                        // validate
                        if (passedUserName == userName && passedPassword == password)
                        {
                            Thread.CurrentPrincipal = actionContext.ControllerContext.RequestContext.Principal = new GenericPrincipal(new GenericIdentity(userName, "Basic"), new string[] { });
                        }
                    }
                }
            }
            return base.IsAuthorized(actionContext);
        }
    }
 
Then i use it as so 
[BasicHttpAuthorize]
public HttpResponseMessage MyExposedSimpleAuthAction()

Javascript事件处理历史[关闭](Javascript Event handling history [closed])

最满意答案

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