I need to disable all keys in input field, this is what I have so far
window.onkeypress = function(event) {
event.preventDefault();
if (event.charCode && (event.charCode < 48 || event.charCode > 57)) {
return false;
}
}<input type="text" value="1" size="4" max="7" name="people-value" id="adults-value">Why does the backspace key still work with this code? What other events should I consider using?
Depending on the web browser you are using, the keypress event is typically triggered when a key is pressed down and that key can produce a character value.
As backspace does not generate any visible output, it does not trigger the keypress event.
Instead, you can utilize the keydown event for this purpose.
window.onkeydown = function(event) {
event.preventDefault();
console.log(event.charCode)
if (event.charCode && (event.charCode < 48 || event.charCode > 57 || event.charCode > 48)) {
return false;
}
}<input type="text" value="1" size="4" max="7" name="people-value" id="adults-value">You can view an example demo on JSFiddle here: https://jsfiddle.net/L47k7uwx/1/
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