TimeRanges: start() method
The start()
method of the TimeRanges
interface returns the time offset at which a specified time range begins.
Syntax
js
start(index)
Parameters
index
-
The range number to return the starting time for.
Return value
A number.
Exceptions
IndexSizeError
DOMException
-
Thrown if the specified index doesn't correspond to an existing range.
Examples
Given a video element with the ID "myVideo":
js
const v = document.getElementById("myVideo");
const buf = v.buffered;
const numRanges = buf.length;
if (buf.length === 1) {
// only one range
if (buf.start(0) === 0 && buf.end(0) === v.duration) {
// The one range starts at the beginning and ends at
// the end of the video, so the whole thing is loaded
}
}
This example looks at the time ranges and looks to see if the entire video has been loaded.
Specifications
Specification |
---|
HTML Standard # dom-timeranges-start-dev |
Browser compatibility
BCD tables only load in the browser