简单问题:我想用JavaScript在HTML中的两个下拉列表中循环数组值。但只有一个下坠起作用了。这个代码有什么问题?
var select = document.getElementById("selectNumber");
var select2 = document.getElementById("selectNumber2");
var options = ["1", "2", "3", "4", "5"];
for (var i = 0; i < options.length; i++) {
var opt = options[i];
var el = document.createElement("option");
el.textContent = opt;
el.value = opt;
select.appendChild(el);
select2.appendChild(el);
}
<select id="selectNumber">
<option>Choose a number</option>
</select>
<select id="selectNumber2">
<option>Choose a number</option>
</select>
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