JavaScript - Calculate the midpoint between two points
JavaScript fundamental (ES6 Syntax): Exercise-267 with Solution
Write a JavaScript program to calculate the midpoint between two pairs of points.
- Destructure the array to get x1, y1, x2 and y2.
- Calculate the midpoint for each dimension by dividing the sum of the two endpoints by 2
Sample Solution:
JavaScript Code:
const mid_point = ([x1, y1], [x2, y2]) => [(x1 + x2) / 2, (y1 + y2) / 2];
console.log(mid_point([6, 6], [4, 4]));
console.log(mid_point([2, -2], [4, 4]));
console.log(mid_point([2, 2], [-4, -1]));
console.log(mid_point([1, 3], [2, 5]));
Sample Output:
[5,5] [3,1] [-1,0.5] [1.5,4]
Flowchart:

Live Demo:
See the Pen javascript-fundamental-exercise-267 by w3resource (@w3resource) on CodePen.
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JavaScript: Tips of the Day
Shorten an array using its length property
A great way of shortening an array is by redefining its length property.
let array = [0, 1, 2, 3, 4, 5, 6, 6, 8, 9] array.length = 4 // Result: [0, 1, 2, 3]
Important to know though is that this is a destructive way of changing the array. This means you lose all the other values that used to be in the array.
Ref: https://bit.ly/2LBj213
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