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<html><body><h1>JavaScript Arrays</h1><h2>The concat() Method</h2><p>The concat() method merges (concatenates) arrays:</p><p id="demo"></p><script>const myGirls = ["Cecilie", "Lone"];const myBoys = ["Emil", "Tobias", "Linus"];const myChildren = myGirls.concat(myBoys);document.getElementById("demo").innerHTML = myChildren;</script></body></html>