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Calculating average of an array in JavaScript
Following is the code for calculating average of an array in JavaScript −
Example
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>Document</title> <style> body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .result, .sample { font-size: 18px; font-weight: 500; color: blueviolet; } .sample { color: red; } </style> </head> <body> <h1>Calculating average of an array</h1> <div><pre class="sample"></pre></div> <div class="result"></div> <button class="Btn">Check</button> <h3>Click on the above button to see document state</h3> <script> let resEle = document.querySelector(".result"); let BtnEle = document.querySelector(".Btn"); let sampleEle = document.querySelector(".sample"); let arr = [1, 2, 3, 4, 5, 11, 22]; sampleEle.innerHTML = arr; BtnEle.addEventListener("click", () => { let sum = 0; arr.forEach((item) => (sum += item)); resEle.innerHTML = "The average of the array = " + sum / arr.length; }); </script> </body> </html> Output
On clicking the ‘Calculate’ button −
Updated on: 2020-07-17T07:50:06+05:30
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