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middle.js
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middle.js
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const assertArraysEqual = require('./assertArraysEqual');
// ACTUAL FUNCTION
const middle = function(array) {
if (array.length <= 2) {
return [];
} else if (array.length % 2 === 0) { //checks to see middle point
let element1 = array.length / 2 - 1; //divide the array in half
let element2 = array.length / 2;
return [array[element1], array[element2]];
} else {
let element3 = Math.floor(array.length / 2);
return [array[element3]];
}
};
//TEST CODE
// assertEqualsArray(middle([1])); // => []
// assertEqualsArray(middle([1, 2])); // => []
// assertArraysEqual(middle([1, 2, 3]), [2]) // => [2]
// assertArraysEqual(middle([1, 2, 3, 4, 5]), [3]) // => [3]
// assertEqualsArray(middle([1, 2, 3, 4])) // => [2, 3]
// assertArraysEqual(middle([1, 2, 3, 4, 5, 6]), [3, 4]) // => [3, 4]
module.exports = middle;