string_score.min.js

// String Scoring Algorithm 0.1.22 | (c) 2009-2015 Joshaven Potter <yourtech@gmail.com>
// MIT License: http://opensource.org/licenses/MIT | https://github.com/joshaven/string_score
String.prototype.score=function(e,f){if(this===e)return 1;if(""===e)return 0;var d=0,a,g=this.toLowerCase(),n=this.length,h=e.toLowerCase(),k=e.length,b;a=0;var l=1,m,c;f&&(m=1-f);if(f)for(c=0;c<k;c+=1)b=g.indexOf(h[c],a),-1===b?l+=m:(a===b?a=.7:(a=.1," "===this[b-1]&&(a+=.8)),this[b]===e[c]&&(a+=.1),d+=a,a=b+1);else for(c=0;c<k;c+=1){b=g.indexOf(h[c],a);if(-1===b)return 0;a===b?a=.7:(a=.1," "===this[b-1]&&(a+=.8));this[b]===e[c]&&(a+=.1);d+=a;a=b+1}d=.5*(d/n+d/k)/l;h[0]===g[0]&&.85>d&&(d+=.15);return d};