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javascript - Which keycode for escape key with jQuery

I have two functions. When enter is pressed the functions runs correctly but when escape is pressed it doesn't. What's the correct number for the escape key?

$(document).keypress(function(e) { 
    if (e.which == 13) $('.save').click();   // enter (works as expected)
    if (e.which == 27) $('.cancel').click(); // esc   (does not work)
});
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Try with the keyup event:

$(document).on('keyup', function(e) {
  if (e.key == "Enter") $('.save').click();
  if (e.key == "Escape") $('.cancel').click();
});

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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