var arrayLength = 3;

​

// create array

var multiArray = new Array(arrayLength);

for (var i = 0; i < multiArray.length; i++) {

  multiArray[i] = new Array(arrayLength);

}

console.log(Array);

// add items to first array index

multiArray[0][0] = "apple";

multiArray[0][1] = "banana";

multiArray[0][2] = "cherry";

​

// second

multiArray[1][0] = 2;

multiArray[1][1] = 56;

multiArray[1][2] = 83;

​

// third

multiArray[2][0] = ['test','again'];

multiArray[2][1] = ['Java','script'];

multiArray[2][2] = ['read','books'];

​

console.log(multiArray); // printed out in first index order

console.log(multiArray[2]); // prints out subarray

console.log(multiArray[2][2][0]); // individual item