require("./../lib/env-js/envjs/node");

require("./../d3");

console.log("sum:");

console.log(" [] -> " + d3.sum([]));

console.log(" [1] -> " + d3.sum([1]));

console.log(" [5, 1, 2, 3, 4] -> " + d3.sum([5, 1, 2, 3, 4]));

console.log(" [\"a\", \"b\", \"c\"] -> " + d3.sum(["c", "a", "b"]));

console.log(" [\"20\", \"3\"] -> " + d3.sum(["20", "3"]));

console.log(" [\"3\", \"20\"] -> " + d3.sum(["3", "20"]));

console.log(" [20, 3] -> " + d3.sum([20, 3]));

console.log(" [3, 20] -> " + d3.sum([3, 20]));

console.log("");

console.log("sum ignores null, undefined, and NaN:");

console.log(" [NaN, 1, 2, 3, 4, 5] -> " + d3.sum([NaN, 1, 2, 3, 4, 5]));

console.log(" [1, 2, 3, 4, 5, NaN] -> " + d3.sum([1, 2, 3, 4, 5, NaN]));

console.log(" [10, null, 3, undefined, 5, NaN] -> " + d3.sum([10, null, 3, undefined, 5, NaN]));

console.log("");

console.log("sum treats heterogenous types as numbers:");

console.log(" [20, \"3\"] -> " + d3.sum([20, "3"]));

console.log(" [\"20\", 3] -> " + d3.sum(["20", 3]));

console.log(" [3, \"20\"] -> " + d3.sum([3, "20"]));

console.log(" [\"3\", 20] -> " + d3.sum(["3", 20]));

console.log("");

console.log("sum applies accessor function:");

console.log(" [1, 2, 3, 4, 5], [2, 4, 6, 8, 10] -> " + d3.sum([[1, 2, 3, 4, 5], [2, 4, 6, 8, 10]], function(d) { return d3.sum(d); }));

console.log(" [1, 2, 3, 4, 5] -> " + d3.sum([1, 2, 3, 4, 5], function(d, i) { return i; }));

console.log("");