timeout.js

这是《JavaScript学习源代码》一书的源代码

// create and initialize a counter variable
var num = 0;

// a recursive function to display a message
function timeout()
{
  // increment the counter
  num++;				
  // display the message
  alert("This is 10-Second Message No: " +num );
  // set the interval before calling this function again
  window.setTimeout("timeout()", 10000);
}

// call the function to start the routine
timeout();