not allow space in input field code example

Example 1: java script how to not allow soace

$(function() {
        $('#input1').on('keypress', function(e) {
            if (e.which == 32){
                console.log('Space Detected');
                return false;
            }
        });
});

Example 2: not allowed space in input field

$('input').keypress(function( e ) {
    if(e.which === 32) 
        return false;
});