jQuery find if the key entered is going to increase the length of text cancel it

Question

I am using jQuery.

Objective:

I am disabling any used input if the max length is reached for a textarea.
I am handling keyDown event and cancelling it.

Problem:

The user may want to delete the last word.

Here is a snippet:

editTweet.keydown(function(e) {
    // Can i check if the (e) is going to increase the text
    var left = Limit - editTweet.val().length;
    if (left <= 0) {
        return false;
    }
    spn.text(left);
});

so why not using keyup event instead and 'substring' it if length is over ? — A. Wolff, Jan 03 '14 at 14:08
Two ways, either check to see the keystroke (del/backspace etc), or change this to keyup, and the val().length will then reflect the intended change, then you can just remove whatever was added (if not deleting) — ginman, Jan 03 '14 at 14:08
you can capture the delete or backspace like the [answer here](http://stackoverflow.com/questions/664631/disable-backspace-and-delete-key-with-javascript-in-ie) — Pete, Jan 03 '14 at 14:09

score 0 · Accepted Answer · edited May 23 '17 at 11:49

0

Solved it using:

 if (e.which < 0x20) {
        // e.which < 0x20, then it's not a printable character
        // e.which === 0 - Not a character
        return;     // Do nothing
    }

Copied from Here

edited May 23 '17 at 11:49

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answered Jan 03 '14 at 14:08

Moons

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What if you select a word and start writting? Will it erase and print the character or do nothing? – Karl-André Gagnon Jan 03 '14 at 14:16

jQuery find if the key entered is going to increase the length of text cancel it

1 Answers1