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rjoydip-zz/unique_random.js

Created August 7, 2017 08:32
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unique_random.js
var exists = [];
function randNumGen($len) {
do {
randomNumber = Math.floor(Math.random() * 5);
} while (exists[randomNumber]);
exists[randomNumber] = true;
return randomNumber;
}
console.log(randNumGen(5));
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