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HTMLOutputElement：labels 属性 - Web API

HTMLOutputElement：labels 属性

Baseline Widely available

HTMLOutputElement.labels 只读属性返回一个包含与 <output> 元素关联的 <label> 元素的 NodeList。

值

一个包含与 <output> 元素关联的 <label> 元素的 NodeList。

示例 HTML 
<label id="label1" for="test">标签 1</label>
<output id="test">输出</output>
<label id="label2" for="test">标签 2</label>
JavaScript 
window.addEventListener("DOMContentLoaded", () => {
  const output = document.getElementById("test");
  for (const label of output.labels) {
    console.log(label.textContent); // “标签 1”和“标签 2“
  }
});
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