JavaScript rounding to 1 decimal place on inline style attribute -

-

I have a function that is generating random RGBA colors and if I log in to the console then it's decimal Rotates at the place (what I want to do), but if you open the console and view it as an inline style feature on the body element, can you see that it is moving in a decimal place? where is the problem? 

  setInterval (function fu () {document.body.style.backgroundColor = ("RGBA (+ + Mathrade). () * 255) +" , "+ Math.round (Math.random (* * 255) +", "+ Math.round (Math.random (* * 255) +", + + Math.random (). Tofix (1)) + " ) ";}, 1000);  
  JS   
  setInterval (function foo () {console.log (("rgba ("+ Math.round (Math.random (* * 255) +", "+ Math.round (Math.random (* * 255) +", + Math.round (Math.random (* * 255) + "," + Math.random (. ToFixed (1)) + ")");}, 1000);   
 If you compare these two fiddles then you see the difference Why are they different? It is a similar task and it should be equal, right?   
 
 
 Browser internally stores alpha values ​​as 1 byte, not in the form of a float. For example When you say that you need 0.5 alpha, then the browser converts it to 1 byte integer using:  
  Math. Floor (255 * 0.5)   
 When you say the result back, it will change the integer by dividing it by 0 to 0.  
 This will be the wrong alpha I tested it using:  Color    by RGBA (134, 78, 73,0,5) // javascript RGBA (134, 78, 73, 0.498039) Re> 
  0.498039 = Math.floor (255 * 0.5) / 255;  (with some rounding at all)

Comments

Post a Comment

Popular posts from this blog

php - PDO bindParam() fatal error -

-
I am trying to learn PDO, now I have written this small code, but it gives me a serious error: < P> Fatal error: Call a member function at a non-object dot () ... $ con = new mysqli ("127.0.0.1", "root", "", "csvdangercheck"); $ Query = $ con- & gt; ("Id,` var1`, `var2`) values ​​(" id,: var1,: var2) ";); $ query- & gt; bypass pattern (': id', $ id); $ query- & gt; BindParam (': var1', $ VAL1); $ Query- & gt; bindParam (': var2', $ val2); $ Query-> Executed (); I Trying to use print_r ($ con-> errorInfo ()) but Fatal error: Undefined method mysqli :: errorInfo ( ) ... can someone tell me what am I missing? Flaffeh said, you have PDO Missing Mysqy, try it: $ con = new PDO ('mysql: host = 127.0.0.1; dbname = csvdangercheck', 'root', '');
Read more

logging - How can I log both the Request.InputStream and Response.OutputStream traffic in my ASP.NET MVC3 Application for specific Actions? -

-
For a specific set of tasks, I need to log in to the incoming request inputstream as well as outgoing response. is. I am using an ActionFilterAttribute for this and overriding the OnActionExecuted and OnResultExecuted methods. So I'm starting with this idea ... Public category ActionLoggerAttribute: ActionFilterArrbit {Public Override Zero On-Offed Execution (ActionActioned Contact Filter Filter) {base.OnActionAxecuted (FilterContext); HttpRequestBase request = filterContext.HttpContext.Request; // TODO: Log the request. InputStream} Public Override Zero OnResultExecuted (ResultExecutedContext FilterContext) {base.OnResultExecuted (filterContext); HTTPRPSPointBase Response = FilterContacts Hpptex response; // TODO: Log on Response.OutputStream}} Ideally I'll hook it up with enterprise library logging because I'm already using it for error logging. Am I reaching the input and output stream at the right time? Can I easily use the Enterprise Library to log i
Read more

java - Why my included JSP file won't get processed correctly? -

-
I am trying to create Java web framework (and learning), and on the basis of 'Code Generator In the process of making the material view of the database in the process of development, I stumbled into a difficulty, which I do not know how to solve it. First of all, I want the following index.jsp : & lt; Body & gt; Use all pages to be created. & Lt;% @ include file = "header.jsp"% & gt; & Lt; Hours / & gt; & Lt;% @ included file = "body.jsp"%> & Lt; Hours / & gt; & Lt;% @ include file = "footer.jsp"% & gt; & Lt; / Body & gt; And, in body.jsp , I should have it like this: & lt; Jsp: include page = "$ {Application_modul}"%> Where application_modul is an attribute defined in its controller: request.setAttribute ("application_modul", "USER_ACCOUNT \\ ' View_user_account.jsp "); This file can be found properly, but the processed JSP does
Read more