Keydown Event Codes

Question

Keydown Event Codes

In the KeyDown event of the textbox, I can check the keyCode range

For example,

if (e.keyCode == 90 to 97 || e.keyCode == 104 to 110)

How to write it down correctly?

+2

jquery

Hitz 15 Sep At 13:57

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4 answers

if ((e.keyCode > 89 && e.keyCode < 98) || (e.keyCode > 103 && e.keyCode < 111))

or

if ((e.keyCode >= 90 && e.keyCode <= 97) || (e.keyCode >= 104 && e.keyCode <= 110))

+1

karim79 15 Sep '09 at 13:59

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if ((90 <= e.keyCode && e.keyCode <= 97) || (104 <= e.keyCode && e.keyCode <= 110))

0

Dominic Rodger 15 Sep '09 at 14:00

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var myKeycodes = [1,2,3,4,5,6];
if(myKeycodes.indexOf(e.keyCode) != -1){
    // your keycode is in the array, do stuff
}

0

inkedmn 15 Sep '09 at 14:00

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Ionuț G. Stan · Accepted Answer · 2009-09-15T14:01:26+0000

var inInterval = function (code, min, max) {
    return code >= min && code <= max;
};

if (inInterval(e.keyCode, 90, 97) || inInterval(e.keyCode, 104, 110))

Or, slightly better:

var interval = function (min, max) {
    return {
        min: min,
        max: max,
        contains : function (elem) {
            return this.min <= elem && elem <= this.max;
        }
    };
};

interval(90, 98).contains(92); // true
interval(90, 98).contains(15); // false

Keydown Event Codes

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