Problem Twelve

twelve.js

var count = 1,
    divisors = 0,
    currentTriangle = 0;

while ( divisors <= 500 ) {

    currentTriangle += count;
    divisors = 0;

    for ( var k = 1; k < currentTriangle / 2; k++ ) {

        if ( currentTriangle % k !== 0 )
            continue;

        divisors += 2;

        if ( currentTriangle / k <= k )
            break;

    }

    count++;

}


document.write( currentTriangle );