Baseline Widely available
Note: This feature is available in Web Workers, except for Service Workers.
The timeout event is fired when progression is terminated due to preset time expiring.
Use the event name in methods like addEventListener(), or set an event handler property.
addEventListener("timeout", (event) => { })
ontimeout = (event) => { }
In addition to the properties listed below, properties from the parent interface, Event, are available.
lengthComputable Read only
A boolean flag indicating if the total work to be done, and the amount of work already done, by the underlying process is calculable. In other words, it tells if the progress is measurable or not.
loaded Read only
A 64-bit unsigned integer value indicating the amount of work already performed by the underlying process. The proportion of work done can be calculated by dividing the value of this property by total. When downloading a resource using HTTP, this only counts the body of the HTTP message, and doesn't include headers and other overhead.
total Read only
A 64-bit unsigned integer representing the total amount of work that the underlying process is in the progress of performing. When downloading a resource using HTTP, this is the Content-Length (the size of the body of the message), and doesn't include the headers and other overhead.
const client = new XMLHttpRequest();
client.open("GET", "http://www.example.org/example.txt");
client.ontimeout = () => {
console.error("Timeout!!");
};
client.send();
You could also set up the event handler using the addEventListener() method:
client.addEventListener("timeout", () => {
console.error("Timeout!!");
});
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