[Solved] How to dedupe pair of random numbers in JavaScript?

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You could use the Set object. When using the method add(), values cannot be duplicated.

Here is an example:

function random(x, max = 10) {  // x = how many random numbers and max = the max number
    const set = new Set();
    for (let i = 0; i <= x; i++) { // Generate numbers x times
      secondLoop:
      while(true) { // Run the loop until there is a match
        let random = Math.floor(Math.random() * Math.floor(max));        
        set.add(random); // Set the value          
        if (set.size === max) { // We have all the values. Let's break the loop       
          break secondLoop;          
        }
      }
    }
  return set;
}

console.log(random(10));

console.log(random(10)) returns everything that you need. You could use random(10).values(), random(10).delete() or whatever you like.

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solved How to dedupe pair of random numbers in JavaScript?