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<select id="fruits" name="fruits" size="3"> <option>Apple</option> <option>Banana</option> <option>Carrot</option> <option>Dewberry</option> <option>Eggplant</option> </select>
document.addEventListener("DOMContentLoaded", () => { let elFruits = document.getElementById("fruits"); [...elFruits.options].forEach((elOption, idx) => { if(idx % 2 == 0) { elOption.style.backgroundColor = "lightgray"; } }); });
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by DevDic
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