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How to select the middle of an array? - JavaScript
We are required to write a JavaScript function that takes in an array of Numbers.
The function should return the middlemost element of the array.
For example −
If the array is −
const arr = [1, 2, 3, 4, 5, 6, 7];
Then the output should be 4
Example
Following is the code −
const arr = [1, 2, 3, 4, 5, 6, 7];
const middle = function(){
const half = this.length >> 1;
const offset = 1 - this.length % 2;
return this.slice(half - offset, half + 1);
};
Array.prototype.middle = middle;
console.log(arr.middle());
console.log([1, 2, 3, 4, 5, 6].middle());Output
This will produce the following output on console −
[ 4 ] [ 3, 4 ]
Updated on 01-Oct-2020 10:55:02
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