javascript - Alerts not opening from if statements -

-

i making rock paper scissors game, , want alerts determine picked , won, alerts dont pop up. found multiple errors going , fixed them, double checked everything, , gave triple check, alerts still not pop up?

this 1 of 3 functions (they similar):

function rock() {   var computerchoice = math.random();   if (computerchoice < 0.34) {     computerchoice = "rock";   } else if (computerchoice < 0.67) {     computerchoice = "paper";   } else {     computerchoice = "scissors";   } } if (computerchoice === "rock") {    alert("link , computer both chose rock! it's tie!"); } else if (computerchoice === "scissors") {    alert("link chose rock , computer chose scissors! computer took heart of damage!"); } else {    alert("link chose rock , computer chose paper! link took heart of damage!"); } }

i think problem on line indicated:

function rock() {   var computerchoice = math.random();   if (computerchoice < 0.34) {     computerchoice = "rock";   } else if (computerchoice < 0.67) {     computerchoice = "paper";   } else {     computerchoice = "scissors";   } } // <-- don't think want closing brace here if (computerchoice === "rock") {    alert("link , computer both chose rock! it's tie!"); } else if (computerchoice === "scissors") {    alert("link chose rock , computer chose scissors! computer took heart of damage!"); } else {    alert("link chose rock , computer chose paper! link took heart of damage!"); } }

the closing brace i've indicated brings end rock() function. stands, rock() function doesn't anything; assigns value "rock", "paper" or "scissors" @ random local variable, function ends without variable being used, value lost.

the rest of code run once when javascript first loaded browser. @ point, computerchoice undefined, , hence javascript error.

if remove errant brace, , reformat code, following:

function rock() {   var computerchoice = math.random();   if (computerchoice < 0.34) {     computerchoice = "rock";   } else if (computerchoice < 0.67) {     computerchoice = "paper";   } else {     computerchoice = "scissors";   }    if (computerchoice === "rock") {      alert("link , computer both chose rock! it's tie!");   } else if (computerchoice === "scissors") {      alert("link chose rock , computer chose scissors! computer took heart of damage!");   } else {      alert("link chose rock , computer chose paper! link took heart of damage!");   } }

i ran function several times. each time alerted 1 of 3 messages @ random.


Comments

Post a Comment

Popular posts from this blog

What can cause "Required Package 'IndyCore' not found" when compiling a Delphi 2010 project? -

-
i have got fresh install of delphi 2010 on windows 8.1. i create new project, , under packages, select "build runtime packages". i compile , error "[dcc fatal error] e2202 required package 'indycore' not found" i have checked: package indycore140.bpl available in $bds\bin directory other indy related packages. indycore.dcp file available in $bds\lib , $bds\lib\debug. this driving me nuts. hints? this command line when enable "show command line" option (line breaks added readability): dcc command line "project2.dpr" c:\delphi\delphi2010\bin\dcc32.exe --no-config -lurtl;vcl;vclx;vclimg;vclactnband;dbrtl;vcldb;vcldbx;bdertl;vcltouch;xmlrtl; dsnap;dsnapcon;teeui;teedb;tee;adortl;vclsmp;vclie;inet;inetdb;webdsnap; websnap;inetdbbde;inetdbxpress;soaprtl;dbxcommondriver;dbxclientdriver; dbxinterbasedriver;dbxmysqldriver;dbexpress;dbxcds;tdbf;intrawebdb_100_140; intraweb_100_140;indycore;indysystem;indyprotocol...
Read more

Change the color of an oval at click in Java AWT -

-
i have draw ovals in java, , @ click change color. beginning tried change color after 20 ms, doesn't work. my code is: public class mycomponentnew extends frame { public graphics2d g2d; public mycomponentnew(string title) { super(title); setsize(400, 550); } @override public void paint(graphics g) { this.g2d = (graphics2d) g; this.g2d.setcolor(color.red); this.g2d.filloval(10, 55, 50, 100); } public void changecolor () { this.g2d.setcolor(color.blue); this.g2d.filloval(10, 55, 50, 100); } } and in class main method have: mycomponentnew m; m = new mycomponentnew("fereastra cu baloane"); m.setvisible(true); m.addwindowlistener(new windowadapter() { @override public void windowclosing(windowevent we) { system.exit(0); } }); try { thread.sleep(20); } catch(interruptedexception e) {} m.changecolor(); the color of oval remains red. ...
Read more