Random number in multiple range

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HI , thanks for your amazing plugin.

Hello, dear @codepeople. Thank you for your amazing plugin! I need your help!

I understand how to make a random number which is between two numbers (1-10):

((Math.floor (Math.random()*10)+1)

But how do I go about generating a random number which falls into multiple ranges?

For example: number can be between 1 to 10 or between 51 to 60

I try this, but it’s not working:

((Math.floor (Math.random()*10)+1)|(Math.floor (Math.random()*10)+51))