javascript : window.location.href inside a “if”
Question
I am a total newby in javascript and I am stuck with a problem.
Everything is happening within this "body" :
<body onKeyDown="myFunction(event);">
This code works : when I press escape on the page, there is a popup with 27. When I press another key, nothing happens. This is what I wanted.
Key_ESC = 27;
function myFunction(event) {
if ( event.keyCode == 27 ){
alert(event.keyCode);
}
}
This code works : When I press any key, I go to next page. This is what I wanted.
Key_ESC = 27;
function myFunction(event) {
window.location.href=\"$INDEX/image`expr $compteur + 1`.html\";
}
But this one doesn't work : when I press any key nothing happens. I thought pressing escape would make a change of page (just like without the "if". It is not the case.
Key_ESC = 27;
function myFunction(event) {
if ( event.keyCode == 27 ){
window.location.href=\"$INDEX/image`expr $compteur + 1`.html\";
}
}
Could any one explain to me why "window.location" doesn't work inside a "if" ? What did I do wrong ? I really have no idea at all....
Thank you very much.
2 answers
solution1
1 ACCPTED 2015-12-15 01:57:25
You probably have to call event.preventDefault
also, in JS just do:
window.onload = function ()
{
Key_ESC=27;
Key_LEFT=37;
document
. event =
{ preventDefault: function( e )
{ e.preventDefault?e.preventDefault():e.returnValue=false;
}
}
;
document.body
. onkeyup = function nextPage ( e )
{
switch
( e.keyCode
) { case Key_ESC
: document.event.preventDefault(e);
window.location.href=URL_NEXT;
case Key_LEFT
: document.event.preventDefault(e);
window.location.href=URL_PREV;
}
}
}
solution2
1 2015-12-15 02:05:27
some time i can help
function myFunction(event) {
if (event.keyCode == 27){
window.location.href="<%= request.getContextPath()%>/INDEX/imagename.html";
}
}
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