handlers

Tornado Restful Handler Classes

由 一个人想着一个人 提交于 2019-11-29 23:19:06
I've read around and found this answered question about a problem relating to this but what I really want to know is how to implement this structure and how many handler classes I need: 1 GET /items #=> index 2 GET /items/1 #=> show 3 GET /items/new #=> new 4 GET /items/1/edit #=> edit 5 PUT /items/1 #=> update 6 POST /items #=> create 7 DELETE /items/1 #=> destroy I was thinking having 2,5,7 mapped to a single handler routed to /items/[0-9]+ and having 3 new handlers for the items, items/new and /items/[0-9]+/edit. The downside is that it felt like a sub-optimal solution to have 4 handlers

Why not use javascript handlers on the body element?

由 陌路散爱 提交于 2019-11-28 12:20:15
As an answer to the question of 'How do you automatically set the focus to a textbox when a web page loads?' , Espo suggests using <body onLoad="document.getElementById('<id>').focus();"> Ben Scheirman replies (without further explanation): Any javascript book will tell you not to put handlers on the body element like that Why would this be considered bad practice? In Espos answer, an 'override' problem is illustrated. Is this the only reason, or are there any other problems? Compatibility issues? Using onLoad is becoming less and less common because callbacks can't be stacked using this

nested postDelayed / Runnable / Handler Android

由 元气小坏坏 提交于 2019-11-28 11:41:42
I am trying to use a nested postDelayed because I need to do something after (delayed for) 5 minutes, stop it after (delayed) 30 seconds, do something else, then repeat both events in the cycle again from the start. I just can't seem to get it right. code I have sofar: private long EnabledAfter = 300000; // 5 minutes private long DisabledAfter = 30000; // 30 seconds public void start_timers(){ on_delayed(EnabledAfter); }//end method private void on_delayed(long period_off){ Delayed = new Runnable() { public void run() { something.enable(context); something.enable_else(context, true); off

Is there an actual difference in the 2 different ways of attaching event handlers in C#?

由 半世苍凉 提交于 2019-11-28 01:54:33
In C# is there any real difference (other than syntax) under the hood between: myButton.Click += new EventHandler(myMemberMethod); and myButton.Click += myMemberMethod; ? Alexander Kojevnikov The second method is a shortcut to the first one, it was introduced in C# 2.0 See also this thread . They are exactly the same, its called syntax sugar. There are a lot of things that arent needed, to get a better idea of them while programming you should try something like Resharper . It will color the unnecessary code in Grey. Not to mention a whole myriad of incredible tools and refactorings. 来源： https

Is it bad practice to use inline event handlers in HTML? [closed]

由 吃可爱长大的小学妹 提交于 2019-11-27 09:04:06
Is it bad to use inline JavaScript event handlers, or is that fine? On the page I plan to use it on, I'm only going to use an event handler once, so is it acceptable to use an inline event handler in this case, or shall I write the code for the event handler within <script> tags? Its bad practice if your concern is readability in your mark-up and maintenance, especially on a larger scale it can get quite messy - also keep in mind the inline JS will never be cached like an external js file would so you do suffer a bit in regards to performance especially if you abuse it Read this article for

nested postDelayed / Runnable / Handler Android

由 六眼飞鱼酱① 提交于 2019-11-27 06:26:26
问题 I am trying to use a nested postDelayed because I need to do something after (delayed for) 5 minutes, stop it after (delayed) 30 seconds, do something else, then repeat both events in the cycle again from the start. I just can't seem to get it right. code I have sofar: private long EnabledAfter = 300000; // 5 minutes private long DisabledAfter = 30000; // 30 seconds public void start_timers(){ on_delayed(EnabledAfter); }//end method private void on_delayed(long period_off){ Delayed = new

Android - loop part of the code every 5 seconds

由 Deadly 提交于 2019-11-27 01:46:56
I would like to start repeating two lines of code every 5 seconds when I press the button START and end it, when I press the button STOP. I was trynig with a TimerTask and Handles, but couldn't figure it out how. public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); //final int i; final TextView textView = (TextView) findViewById(R.id.textView); final Button START_STOP = (Button) findViewById(R.id.START_STOP); final ImageView random_note = (ImageView) findViewById(R

executing default signal handler

由 早过忘川 提交于 2019-11-26 15:47:41
问题 I have written an application where i have registered number of signal handler for different signals in linux . After process receives the signal the control is transferred to the signal handler i had registered. In this signal handler i do some work which i need to do, and then i would like to call the default signal hander i.e SIF_DFL or SIG_IGN . However, SIG_DFL and SIG_ING are both macros which expand to numeric values 0 and 1 respectively, which are invalid function addresses. IS there

Is it bad practice to use inline event handlers in HTML? [closed]

由 让人想犯罪 __ 提交于 2019-11-26 14:28:43
问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 6 years ago . Is it bad to use inline JavaScript event handlers, or is that fine? On the page I plan to use it on, I'm only going to use an event
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