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How to catch keypress and mouse up at the same time

I can toogle the ctrlBtn["pressed"] to true when I press CTRL or ALT key on Mac. (inspecting by console.log)
However, when I trigger the mouse up it couldn't enter the saveWord(selected). ctrlBtn["pressed"] still stays false.
What a good practice to catch the keypress and mouse up at the same time.
I'm writing a chrome extension currently. The whole script is here! https://gist.github.com/weichenghsu/4bbb2d1b6c3d34d55a942c3c6713fa89
Thanks!
window.addEventListener('load', function () {
...
document.body.addEventListener('mouseup', function (e) {
var selection = window.getSelection();
var selected = selection.toString().trim();
if (selected) {
console.log(ctrlBtn);
console.log(ctrlBtn["pressed"]);
if (ctrlBtn["pressed"] == true) {
saveWord(selected);
}
updateHighlighter();
}
});
window.addEventListener('keyup', function (e) {
ctrlBtn["pressed"] = false;
});
window.addEventListener('keydown', function (e) {
console.log(e.keyCode);
if (e.keyCode == 17 || e.keyCode == 18) {
ctrlBtn["pressed"] = true;
}
e.preventDefault();
return false;
});

Ignore keyup for a few seconds for ux

I have a multistep form using jquery validator plugin that also goes to the next page when you press enter.
function showPage(pg){
$('formError').empty();
$('table:visible').hide();
$('#page-' + pg).show();
$('input[type="text"]:visible').focus();
}
$(document).keydown(function(e) {
if(e.which == 13) {
if($('#msform :input:visible').valid()){
page++;
showPage(page);
}}});
The issue is that if you use the enter button, it triggers a validation error on the next page because the button is still being pressed and it tries to go to the next page.
How can I ignore the enter key for a small period so that releasing the enter key works to go to the next page without attempting to go to the page after the next page?

You can wait for the corresponding keyup event before taking in account a new keydown event for the enter key.
pressed = {};
$(document).keydown(function(e){
if(pressed[e.which] == null && e.which == '13'){
if($('#msform :input:visible').valid()) {
page++;
showPage(page);
}
}
pressed[e.which] = true;
});
$(document).keyup(function(e) {
pressed[e.which] = null;
});

You can use setTimeout() function like this
$(document).keydown(function(e) {
setTimeout(myFunction(),500);
});
function myFunction(){
if(e.which == 13) {
if($('#msform :input:visible').valid()){
page++;
showPage(page);
}}
}
::::::::::::::::::Update::::::::::::::::::
$(document).keydown(function(e) {
if(e.which == 13) {
setTimeout(myFunction(),500);
}
});
function myFunction(){
if($('#msform :input:visible').valid()){
page++;
showPage(page);
}
}

How to simulate a key press by pressing a different key

I want to hide the "suggested" options list that appears underneath the search input when you start typing something on the Wordpress search plugin, what I need specifically is to fire the "Escape" key event when I press down the "Delete" key, I tried the following jquery function but it doesn't work as I expected.
$('form.search-form').keydown(function (e) {
// keycode for Delete key
if (e.keyCode == 46) {
var a = $.Event("keydown");
// keycode for Esc key
a.which = 27;
a.keyCode = 27;
$(document).trigger(a);
}});
Any help? Thanks in advance

Updated (original question was unclear)
Live demo here (click).
When the delete key is pressed, change the keyCode to the esc key, then use trigger to simulate a press of esc.
$('input').keydown(function (e) {
// keycode for delete
if (e.keyCode == 46) {
console.log('delete key pressed.');
e.keyCode = 27;
$(this.target).trigger(e);
}
});
$('input').keydown(function (e) {
// keycode for esc
if (e.keyCode == 27) {
console.log('esc key pressed.');
}
});
Old answer (leaving this here because it is similar.)
Your question is an X/Y problem. You don't need to fire another keydown, event, you just need to repeat the same functionality, so extract the esc event's code into a function and reuse in the del key's event. Live demo here (click).
$('input').keydown(function (e) {
// keycode for delete
if (e.keyCode == 46) {
myFunction(e);
}
});
$('input').keydown(function (e) {
// keycode for esc
if (e.keyCode == 27) {
myFunction(e);
}
});
function myFunction() {
alert('Look, Ma! Code reuse!');
}
Better yet, do this! Live demo here (click).
$('input').keydown(function (e) {
// keycodes for delete and esc
if (e.keyCode == 46 || e.keyCode == 27) {
myFunction(e);
}
});
function myFunction() {
alert('Look, Ma! Code optimization!');
}

Prevent Form submitting and hitting keyup event handler not working

Having some problem cross browser. I need to Support IE7-9, my site is set to IE7 standards - cannot be changed. Then i need to support latest chrome, safari and firefox.
I want to hit a keyup event in a textbox on enter. Problem is i have a keypress event added to the form on that page which is submitting the form which i dont want to happen.
Sample application would be like this.
JAVASCRIPT:
$(document).ready(function () {
$("form").bind("keypress", function (e) {
var code = (e.keyCode ? e.keyCode : e.which);
if (code == 13) {
$("#log1").append("Key press - Form event");
}
});
$("#myInput1").bind("keypress", function (e) {
var code = (e.keyCode ? e.keyCode : e.which);
if (code != 13) {
return true;
}
$("#log2").append("Enter pressed - input event");
//if (!e) var e = window.event;
e.cancelBubble = true;
e.returnValue = false;
if (e.stopPropagation) {
e.stopPropagation();
//e.preventDefault();
}
});
$("#myInput1").bind("keyup", function (e) {
var code = (e.keyCode ? e.keyCode : e.which);
if (code != 13) {
return true;
}
$("#log1").append("Key up - Enter pressed - input event");
});
});​
HTML
<li onkeypress="alert('hi')">
<input id="myInput1" type="text" />
<div id="log1"></div>
<div id="log2"></div>
</li>
If i use e.preventDefault() - keyup event is not hit, if i dont use it, page is posting back.
I want to see "Key up - Enter pressed - input event" to be written to screen on pressing enter, across all browsers.
Any help would be appreciated. Thank you.

Finally was able to do it like this:
$(document).ready(function () {
$("form").bind("keypress", function (e) {
var code = (e.keyCode ? e.keyCode : e.which);
if (code == 13) {
$("#log1").append("Key press - Form event");
}
});
$("#myInput1").bind("keypress", function (e) {
var code = (e.keyCode ? e.keyCode : e.which);
if (e.keyCode != 13) {
return true;
}
$("#log2").append("Enter pressed - input event");
e.stopPropagation();
sampleE = e.keyCode;
$("#myInput1").trigger("keyup");
return false;
});
$("#myInput1").bind("keyup", function (e) {
if (!e.keyCode)
e.keyCode = sampleE;
if (e.keyCode != 13) {
return true;
}
$("#log1").append("Key up - Enter pressed - input event");
});
});
var sampleE = null;
I know this is not the best of the options but this is working. Thanks All.

keypress event is not fired when we press enter key

I am facing a problem regarding to the keypress event. When I press the enter key then keypress event is not fired but it is working fine with the other keys.
Here is my code :
$(document).ready(function () {
alert('hi');
$("#ctl00_popupPageBody_txtFirstName,#ctl00_popupPageBody_txtLastName").keypress(function (e) {
var code = (e.keyCode ? e.keyCode : e.which);
alert(code);
if (code == 13) { //Enter keycode
//Do something
}
});
});

You should use keyup event for this
$(document).ready(function() {
$("#ctl00_popupPageBody_txtFirstName,#ctl00_popupPageBody_txtLastName").keyup(function(e) {
if (e.which == 13) {
//Enter keycode //Do something
}
});
});

Use just e.which as its normalized across keys:
$(document).ready(function () {
alert('hi');
$("#ctl00_popupPageBody_txtFirstName,#ctl00_popupPageBody_txtLastName").keypress(function (e) {
var code = e.which;
alert(code);
if (code === 13) { //Enter keycode
e.preventDefault();
//your code goes here
}
});
});
Note: in my case I bind do .keydown