Use the oncanplaythrough attribute to execute a script when a file can be played all the way to the end without pausing for buffering in HTML.
Example
You can try to run the following code to implement oncanplaythrough attribute −
<!DOCTYPE html> <html> <body> <video id = "myVideo" width = "400" height = "200" controls oncanplaythrough = "display()"> <source src = "/html5/foo.ogg" type = "video/ogg" /> <source src = "/html5/foo.mp4" type = "video/mp4" /> Your browser does not support the video element. </video> <script> function display() { alert("Can be played without pausing for buffering."); } </script> </body> </html>