Tip

Javascript Password Generator

Generates a random alphanumeric password using Javascript.
function make_pwd()
{
var password_length = 6;
var valida = "abcdefghijklmnopqrstuvwxyz";
var validn = "0123456789";
var npwd = "";
var pick = 0;
for (var i=0; i<password_length; i++)
{
/* this is to pick alpha or number 0=a 1=n*/
if(Math.floor(2*Math.random()))
{
/* this is to pick a random character */
pick = Math.floor(26*Math.random());
if(Math.floor(2*Math.random()))
npwd = npwd + valida.substring(pick,pick+1).toUpperCase();
else
npwd = npwd + valida.substring(pick,pick+1);
}
else
{
/* this is to pick a random number */
pick = Math.floor(10*Math.random());
npwd = npwd + validn.substring(pick,pick+1);
}
}
alert(npwd);
}

This was first published in November 2000

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