javascript - How to efficiently check if any substring in an array is contained in another string -

i want have checks if substring in list of strings included in string. have works, i'm hoping there cleaner , more efficient, preferably in 1 line can call if(string.contains(list.any)) or something.

var list = ['aa','bb','cc','dd']; var string = "nygaard"; // true because "aa" in "nygaard".  (var = 0; < list.length; i++) {     if( string.indexof( list[i] ) > -1 ) {         alert("true");         break;     } } 

why not put loop in own function can call?

function stringcontains(string, list) {     (var = 0; < list.length; i++) {         if( string.indexof( list[i] ) > -1 )             return true;     }     return false; } 

and call this:

var list = ['aa','bb','cc','dd']; var string = "nygaard";  if(stringcontains(string, list))    alert("true"); 

if you're looking javascript library function, don't believe there one.