Question

58

How to detect keyboard modifier (Ctrl or Shift) through JavaScript

rated 0 times [ 60] [ 2] / answers: 1 / hits: 24328 / 12 Years ago, sat, november 24, 2012, 12:00:00

I have a function which detect max length. but the problem is that when the max length reached Ctrl+A combination does't work. How can I detect Ctrl+A combination through javascript.

This is my maxlength code.

if (event.keyCode==8 || event.keyCode==9 || event.keyCode==37 || event.keyCode==39 ){

        return true;

} else {            

        if((t.length)>=50) {    

            return false;

        }   

}

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finn

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4 Years ago

answered 12 Years ago zahrafrancisr · Accepted Answer

Check event.ctrlKey:

function keyHandler(event) {

    event = event || window.event;

    if(event.keyCode==65 && event.ctrlKey) {

        // ctrl+a was typed.

    }

}