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Find a random item in an Array JavaScript Code Example

Last Updated on Wednesday 5th Oct 2022
			
					const arr = ['one', 'two', 'three', 'four', 'five'];

			
	

Step 1: Need to find the length of an array

			
					const length = arr.length;  //  5

			
	

Step 2 : Create a random Number between 0 and 1 with Math.random()

			
					const randomNumber = Math.random();

			
	

Step 3: Multiply this random number by the length of an array to find the possible length

			
					const possibleLength = length * randNumber;

			
	

Step 4: Round this possible Length by Math. floor.

			
					const rounded = Math.floor(possibleLength);

			
	

Step 5: Return the rounded in array to the generated random integer

			
					console.log(arr(rounded));

			
	

In Simple

			
					const findRandom = arr[Math.floor(Math.random() * arr.length)];

console.log(findRandom)