Sequencing Keypress Events in Internet Explorer

Question

Sequencing Keypress Events in Internet Explorer

I've come across an issue regarding the keypress event sequence in Firefox and IE. In Firefox, pressing a key on a focused input writes the character first before firing the event function. On the other hand, IE does it in the opposite order.

My specific problem is having two input text fields side by side where I want the second one to gain focus immediately after typing a single character in the first field. This behaves as expected in Firefox but not in IE since it switches focus before the character appears in the first field...

Below is a simplified version of the code I'm currently using (both elements are text inputs):

        var one = document.getElementById('one');
        var two = document.getElementById('two');

        one.addEventListener('keypress', function(e) {
            e.target.nextElementSibling.focus();
        });

How can this be resolved? Is there a way to ensure that focus is switched only after the pressed key registers on the screen?

javascript events sequence keypress explorer

Answer 1

Answer №1

One possible solution is to utilize the setTimeout function in the following way:

var firstInput = document.getElementById('one');
var secondInput = document.getElementById('two');

firstInput.addEventListener('keypress', function(e) {
    setTimeout((function(elem){
        return function(){
            elem.focus();
        };
    })(e.target.nextElementSibling), 0);
});

<input id="one" type="text"/><input id="two" type="text"/>

The use of setTimeout ensures that the function will be triggered on the next stack execution, allowing for the element to be filled before focusing on it.

Answer 2

One possible solution is to utilize the setTimeout function in the following way:

var firstInput = document.getElementById('one');
var secondInput = document.getElementById('two');

firstInput.addEventListener('keypress', function(e) {
    setTimeout((function(elem){
        return function(){
            elem.focus();
        };
    })(e.target.nextElementSibling), 0);
});

<input id="one" type="text"/><input id="two" type="text"/>

The use of setTimeout ensures that the function will be triggered on the next stack execution, allowing for the element to be filled before focusing on it.

Answer 3

Answer №2

It appears that the focus switch is occurring prematurely rather than at the intended time.

To resolve this, consider delaying the focus shift using a setTimeout. This way, the .focus function will be called after the character has been entered.
Alternatively, extract the current element (where the text is being input) from e and toggle the focus switch instead of executing it immediately. By always switching after, this approach should work correctly on various browsers.

Answer 4

It appears that the focus switch is occurring prematurely rather than at the intended time.

To resolve this, consider delaying the focus shift using a setTimeout. This way, the .focus function will be called after the character has been entered.
Alternatively, extract the current element (where the text is being input) from e and toggle the focus switch instead of executing it immediately. By always switching after, this approach should work correctly on various browsers.

Sequencing Keypress Events in Internet Explorer

Answer №1

Answer №2

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