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copied!<p>Use the <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/push" rel="noreferrer"><code>push()</code></a> function to append to an array:</p> <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false"> <div class="snippet-code"> <pre class="snippet-code-js lang-js prettyprint-override"><code>// initialize array var arr = [ "Hi", "Hello", "Bonjour" ]; // append new value to the array arr.push("Hola"); console.log(arr);</code></pre> </div> </div> </p> <p>Will print</p> <pre><code>["Hi", "Hello", "Bonjour", "Hola"] </code></pre> <hr> <p>You can use the <code>push()</code> function to append more than one value to an array in a single call:</p> <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false"> <div class="snippet-code"> <pre class="snippet-code-js lang-js prettyprint-override"><code>// initialize array var arr = [ "Hi", "Hello", "Bonjour", "Hola" ]; // append multiple values to the array arr.push("Salut", "Hey"); // display all values for (var i = 0; i < arr.length; i++) { console.log(arr[i]); }</code></pre> </div> </div> </p> <p>Will print</p> <pre><code>Hi Hello Bonjour Hola Salut Hey </code></pre> <hr> <p><strong>Update</strong></p> <p>If you want to add the items of one array to another array, you can use <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/concat" rel="noreferrer"><code>firstArray.concat(secondArray)</code></a>:</p> <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false"> <div class="snippet-code"> <pre class="snippet-code-js lang-js prettyprint-override"><code>var arr = [ "apple", "banana", "cherry" ]; arr = arr.concat([ "dragonfruit", "elderberry", "fig" ]); console.log(arr);</code></pre> </div> </div> </p> <p>Will print</p> <pre><code>["apple", "banana", "cherry", "dragonfruit", "elderberry", "fig"] </code></pre>

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