How to decide between two numbers randomly using javascript?

Question

I want a javascript script that choose either value1 or value2 randomly, not between the two values , just the actual values.

Thanks!!!!

Answer 1

The Math.random^[MDN] function chooses a random value in the interval [0, 1). You can take advantage of this to choose a value randomly.

var chosenValue = Math.random() < 0.5 ? value1 : value2; 

Answer 2

Math.round(Math.random()) returns a 0 or a 1, each value just about half the time.

You can use it like a true or false, 'heads' or 'tails', or as a 2 member array index-

['true','false'][Math.round(Math.random())] will return 'true' or 'false'...