Cara close window javascript-html5

Pengen buat program yang ada tombol close nya.
Akhirnya googling dulu ...
Alhamdulillah ketemu beberapa contoh yang bisa di pakai.

Berikut contoh-contoh program yang bisa dipakai untuk menutup window kita.

Cara 1:
window.open('', '_self', ''); //bug fix
window.close();

Cara 2:
window.open(...);
setTimeout(function(){
    window.open('', '_self', '');
    window.close();
}, 100);

Cara 3:
setTimeout(function() { window.close(); },50);

Cara 4:
top.window.close()


semoga bermanfaat :)

sumber:
http://stackoverflow.com/questions/2032640/problem-with-window-close-and-chrome

Window Debug Javascript - IE, Firefox, Chrome

Ada kalanya program html5 kita error, dan tak bisa berjalan sesuai yang kita ingikan.
Untuk itu, kita bisa menampilkan Window Debug Javascript di Browser.
Error di program kita pun bisa di deteksi.

Ini shortcut nya:
1. Chrome : Ctrl + Shift + J
2. Firefox  : Ctrl + Shift + J
3. IE         : F12


semoga bermanfaat :)

sumber:
http://stackoverflow.com/questions/9464545/debugging-firefox-extension-from-add-on-builder
http://stackoverflow.com/questions/66420/how-do-you-launch-the-javascript-debugger-in-google-chrome
https://developers.google.com/chrome-developer-tools/docs/javascript-debugging
http://stackoverflow.com/questions/10191099/debugging-javascript-in-ie

resize_canvas - setelah di modifikasi untuk Firefox

function resize_canvas(){
var t = getViewport();

innerWidth = t[0];//window.innerWidth;
innerHeight = t[1];//window.innerHeight;

sizeDiffW = innerWidth-canvasWidth;
sizeDiffH = innerHeight-canvasHeight;
chkscaleW = innerWidth/canvasWidth;
chkscaleH = innerHeight/canvasHeight;
scaleFix = Math.min(chkscaleW,chkscaleH);

canvas.width=canvasWidth*scaleFix;
canvas.height=canvasHeight*scaleFix;
context.scale(scaleFix, scaleFix);

canvas.style.left="100px";
canvas.style.top="100px";
canvas.style.marginLeft="100px";
canvas.style.marginTop="100px";


canvas.style.left=((innerWidth-canvasWidth*scaleFix)/2)+"px";
canvas.style.top=((innerHeight-canvasHeight*scaleFix)/2)+"px";

canvas.style.marginLeft=""+((innerWidth-canvasWidth*scaleFix)/2)+"px";
canvas.style.marginTop=""+((innerHeight-canvasHeight*scaleFix)/2)+"px";

}