HTMLProgressElement:max 属性
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
HTMLProgressElement
接口的 max
属性表示 <progress>
元素的范围的上限。
值
一个大于零的浮点数。默认值是 1.0。
示例
HTML
html
进度:<progress id="pBar"></progress> <span>0</span>%
JavaScript
js
const pBar = document.getElementById("pBar");
const span = document.getElementsByTagName("span")[0];
console.log(`max 的默认值:${pBar.max}`);
pBar.max = 100;
pBar.value = 0;
setInterval(() => {
pBar.value = pBar.value < pBar.max ? pBar.value + 1 : 0;
span.textContent = Math.trunc(pBar.position * 100);
}, 100);
规范
Specification |
---|
HTML Standard # dom-progress-max |
浏览器兼容性
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