Performance.onresourcetimingbufferfull
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
| 规范 |
|---|
| Resource Timing # dom-performance-onresourcetimingbufferfull |