Elegant way of checking if a value is within a range and setting it's value if it falls outside of the range?

Question

What I want to do is quite simple in itself, but I'm wondering is there is some really neat and compact way of accomplishing the same thing.

I have a float variable, and I want to check if it's value is between 0 and 1. If it's smaller than 0 I want to set it to zero, if it's larger than 1 I want to set it to 1.

Usually I do this:

// var myVar is set before by some calculation

if(myVar > 1){
    myVar = 1;
}
if(myVar < 0){ 
    myVar = 0;
}

Does anyone know of a more elegant/compact way of doing this?

Answer 1

One possible solution:

myVar = Math.min(1, Math.max(0, myVar));

Another:

myVar = myVar < 0 ? 0 : myVar > 1 ? 1 : myVar;

Answer 2

Use Math.min and Math.max, and avoid having a condition.

var MAX = 100;
var MIN = 50;

var val = 75;
console.log( Math.max(MIN, Math.min(MAX, val)) );

var val = 49;
console.log( Math.max(MIN, Math.min(MAX, val)) );

var val = 101;
console.log( Math.max(MIN, Math.min(MAX, val)) );