Return 5 random numbers in range, first number cannot be zero - JavaScript

We are required to write a JavaScript function that generates an array of exactly five unique random numbers. The condition is that all the numbers have to be in the range [0, 9] and the first number cannot be 0.

Example

Following is the code −

const fiveRandoms = () => {
   const arr = []
   while (arr.length < 5) {
      const random = Math.floor(Math.random() * 10);
      if (arr.indexOf(random) > -1){
         continue;
      };
      if(!arr.length && !random){
         continue;
      }
      arr[arr.length] = random;
   }
   return arr;
};
console.log(fiveRandoms());

Output

This will produce the following output in console −

[ 9, 0, 8, 5, 4 ]

AmitDiwan

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Updated on: 30-Sep-2020

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