How to randomize values in JavaScript.

Question

For example:

Let`s pretend i want to make a code for creating a conversation between the user and the program.

var answer =["I am a program", "I am a software", "I am a JavaScript program"];

function dialogue() {
alert("Hello there");
var user = prompt("Say something");

if(user == "What are you?") {
alert(answer);
}
In the alert above i`d like the program to randomly select one of the strings inside the answer array and print it.

}

Answer 1

It's really simple:

Math.random ()
this gives you a number between 0 and 1

Math.random ()*100
this gives you a number between 0 and 100

Math.floor (Math.random()*100)
this gives you a ROUNDED number between 0 and 100

hope this helps
~Kamil

Answer 2

Tha you, man. I think this will do.

Answer 3

Maht.random returns a random number between 0 (inclusive) and 1 (exclusive). Math.random() will never return the value 1.

So, Math.floor(Math.random()*100) will return a value between 0 and 99.

And Math.floor(Math.random()*101) will return a value between 0 and 100.

If you want to work with an interval, you can do:
Math.floor(Math.random()*6)+5
It will return a value between 5 (inclusive) and 10 (inclusive).

You can also do:
Math.floor(Math.random()*11)*10
It will return one of this values: 0, 10, 20, 30, ..., 100.

Good luck!

Answer 4

yes Math.random() gives you random no brtwwn 0 to 1 you can multiply it by no of elements you want and round off
using Math.floor()
so for one digit Math.floor(Math.random*10);