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How to join two arrays in JavaScript?
<p>Following is the code to join two arrays together in JavaScript −</p><h2>Example</h2><p><a class="demo" href="http://tpcg.io/Le7xmDuk" rel="nofollow" target="_blank"> Live Demo</a></p><pre class="prettyprint notranslate" style=""><!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>Join two arrays in JavaScript</h1> <div class="sample"></div> <div class="result"></div> <button class="Btn">CLICK HERE</button> <h3>Click the above button to join the above two arrays together.</h3> <script> let BtnEle = document.querySelector(".Btn"); let resEle = document.querySelector(".result"); let sampleEle = document.querySelector(".sample"); let arr = [1, 2, 3, 4]; let arr1 = ["A", "B", "C", "D"]; sampleEle.innerHTML = "arr = " + arr + " " + "arr1 = " + arr1; let mergedArr = arr.concat(arr1); BtnEle.addEventListener("click", () => { resEle.innerHTML = "Merged array = " + mergedArr; }); </script> </body> </html></pre><h2>Output</h2><p>The above code will produce the following output −</p><p style=""><img src="https://www.tutorialspoint.com/assets/questions/media/40282/join_two_arrays1.jpg" class="fr-fic fr-dib" width="598" height="219"></p><p>On clicking the ‘CLICK HERE’ button −</p><p style=""><img src="https://www.tutorialspoint.com/assets/questions/media/40282/join_two_arrays2.jpg" class="fr-fic fr-dib" width="595" height="237"></p>
Updated on 18-Jul-2020 09:03:20
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