jquery - How can I use JavaScript to limit a number between a min/max value? -

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i want limit number between 2 values, know in php can this:

$number = min(max(intval($number), 1), 20); // make $number 1 if it's lower 1, , 20 if it's higher 20

how can in javascript, without having write multiple if statements , stuff that? thanks.

like 

var number = math.min(math.max(parseint(number), 1), 20);

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