Middle of three using minimum comparisons | Function to find the middle of three number ; x is positive if a is greater than b . x is negative if b is greater than a . ; Similar to x ; Similar to x and y . ; Checking if b is middle ( x and y both are positive ) ; Checking if c is middle ( x and z both are positive ) ; Driver code
function middleOfThree ( a , b , c ) { let x = a - b ; let y = b - c ; let z = a - c ; if ( x * y > 0 ) return b ; else if ( x * z > 0 ) return c ; else return a ; } let a = 20 , b = 30 , c = 40 ; document . write ( middleOfThree ( a , b , c ) ) ;