RosettaCodeData/Task/Evaluate-binomial-coefficients/JavaScript/evaluate-binomial-coefficients.js

function binom(n, k) {
    var coeff = 1;
    for (var i = n-k+1; i <= n; i++) coeff *= i;
    for (var i = 1;     i <= k; i++) coeff /= i;
    return coeff;
}
print(binom(5,3));