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Joining a JavaScript array with a condition?
Following is the code to a JavaScript array with a condition 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: rebeccapurple; } .result { color: red; } </style> </head> <body> <h1>Joining a JavaScript array with a condition</h1> <div class="sample"></div> <div class="result"></div> <button class="Btn">CLICK HERE</button> <h3>Click the above button to join the array elements that are divisible by 2.</h3> <script> let BtnEle = document.querySelector(".Btn"); let resEle = document.querySelector(".result"); let sampleEle = document.querySelector(".sample"); let arr = [1, 2, 3, 4, 5, 6, 7, 8, 11, 22, 33, 18]; sampleEle.innerHTML = arr; let joinArr = arr.filter((el) => el % 2 == 0).join(" : "); BtnEle.addEventListener("click", () => { resEle.innerHTML = joinArr; }); </script> </body> </html> Output
The above code will produce the following output −
On clicking the ‘CLICK HERE’ button −
Updated on: 2020-07-18T09:06:07+05:30
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