Creating Array of Regular Expressions Javascript

You don't need the loop to test every word as you can put them all into one regular expression (separated by the | character) and let the regex engine look for any of them all at once. You could do that like this:

function unacceptable(pwd){    var unforgivable = [        "password",        "12345678",        "8675309",        "[a-z]{8,}",        "qwerty",        "asdfg",        "qazwsx",        "zxcvb",        "letmein",        "trustno1",        "omnicloud",        "monkey"    ];    var re = new RegExp(unforgivable.join("|"), "i");    return re.test(pwd);}

Working demo here: http://jsfiddle.net/jfriend00/cyVbC/

P.S. You don't have to put all the words into an array. You could just predeclare the entire regex, but I thought putting them in the array like this made for more readable code that was easier to maintain.

It could also be this:

var unforgivable = /password|12345678|8675309|[a-z]{8,}|qwerty|asdfg|qazwsx|zxcvb|letmein|trustno1|omnicloud|monkey/i;function unacceptable(pwd){    return unforgivable.test(pwd);}

I like using Array.some, which will stop iterating through the array as soon as one return value is true:

function unacceptable(pwd){    return [        /password/gi,        /12345678/g,        /8675309/g,        /[a-z]{8,}/gi,        /qwerty/gi,        /asdfg/gi,        /qazwsx/gi,        /zxcvb/gi,        /letmein/gi,        /trustno1/gi,        /omnicloud/gi,        /monkey/gi    ].some(function(regexp){        return regexp.test(pwd);    });}

You have a trailing comma. You can't use a trailing comma in javascript.

var unforgivable = new Array(    /password/gi, /*g matches any occurance of sequence, i checks case insensitive*/    /12345678/g,    /8675309/g,    /[a-z]{8,}/gi,    /qwerty/gi,    /asdfg/gi,    /qazwsx/gi,    /zxcvb/gi,    /letmein/gi,    /trustno1/gi,    /omnicloud/gi,    /monkey/gi)