Codility Answers in Javascript

max_produce_of_three.js

// you can use console.log for debugging purposes, i.e.
// console.log('this is a debug message');

function solution(A) {
    A.sort(function(a,b) {
        if (a < b) {
            return 1;
        } else if (a > b) {
            return -1;
        } else {
            return 0;
        }
    });
    
    return Math.max(A[0]*A[1]*A[2], A[A.length-1] * A[A.length-2] * A[0]);
}

triangle.js

// you can use console.log for debugging purposes, i.e.
// console.log('this is a debug message');

function solution(A) {
    A.sort(function(a,b) {
        if (a > b) {
            return 1;
        } else if (a < b) {
            return -1;
        } else {
            return 0;
        }
    });
    
    for(var i=0; i < A.length-2; i++) {
        if (A[i] + A[i+1] > A[i+2]) {
            return 1;
        }    
    }
    
    return 0;
}