Performance.onresourcetimingbufferfull
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2020年1月.
onresourcetimingbufferfull 属性是一个在 resourcetimingbufferfull 事件触发时会被调用的 event handler。这个事件当浏览器的资源时间性能缓冲区已满时会触发。
语法
callback = performance.onresourcetimingbufferfull = buffer_full_cb;
返回值
- callback
-
一个当
resourcetimingbufferfull事件触发时调用的事件处理器。
例子
下面的示例在 onresourcetimingbufferfull 属性上设置一个回调函数。
js
function buffer_full(event) {
console.log("WARNING: Resource Timing Buffer is FULL!");
performance.setResourceTimingBufferSize(200);
}
function init() {
// Set a callback if the resource buffer becomes filled
performance.onresourcetimingbufferfull = buffer_full;
}
<body onload="init()">
规范
| Specification |
|---|
| Resource Timing # dom-performance-onresourcetimingbufferfull |
浏览器兼容性
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