Question

What’s the best way to break from nested loops in Javascript?

//Write the links to the page. for (var x = 0; x < Args.length; x++) {    for (var Heading in Navigation.Headings)    {       for (var Item in Navigation.Headings[Heading])       {          if (Args[x] == Navigation.Headings[Heading][Item].Name)          {             document.write('<a href=\''                 + Navigation.Headings[Heading][Item].URL + '\'>'                 + Navigation.Headings[Heading][Item].Name + '</a> : ');             break; // <---HERE, I need to break out of two loops.          }       }    } } 

Answer 1

Just like Perl,

loop1:     for (var i in set1) { loop2:         for (var j in set2) { loop3:             for (var k in set3) {                 break loop2;  // breaks out of loop3 and loop2             }         }     } 

as defined in EMCA-262 section 12.12. [MDN Docs]

Unlike C, these labels can only be used for continue and break, as Javascript does not have goto.