TimeRanges.start()

Returns the time offset at which a specified time range begins.

Syntax

startTime = TimeRanges.start(index) 

Parameters

  • index is the range number to return the starting time for.

Exceptions

INDEX_SIZE_ERR
A DOMException thrown if the specified index doesn't correspond to an existing range.

Example

Given a video element with the ID "myVideo":

var v = document.getElementById("myVideo");

var buf = v.buffered;

var 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 Status Comment
HTML Living Standard
The definition of 'TimeRanges.start()' in that specification.
Living Standard Initial definition

 Browser compatibility

 

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support Yes Yes Yes Yes Yes Yes
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support Yes Yes Yes Yes Yes Yes Yes

 

Document Tags and Contributors

Last updated by: fscholz,