WordPress/wp-admin/js/password-strength-meter.js

function passwordStrength(f,i,d){var k=1,h=2,b=3,a=4,c=5,g=0,j,e;if((f!=d)&&d.length>0){return c}if(f.length<4){return k}if(f.toLowerCase()==i.toLowerCase()){return h}if(f.match(/[0-9]/)){g+=10}if(f.match(/[a-z]/)){g+=26}if(f.match(/[A-Z]/)){g+=26}if(f.match(/[^a-zA-Z0-9]/)){g+=31}j=Math.log(Math.pow(g,f.length));e=j/Math.LN2;if(e<40){return h}if(e<56){return b}return a};