node.js 数组

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// 二维数组
function twoDimensionalArray(xMax, yMax) {
    var arr = new Array()
    for (i=0; i b; }));

console.log("由大到小");
console.log(srcArr.sort(function(a, b) { return a < b; }));

console.log("--------------------map reduce----------------------")
console.log(srcArr);
var mapResult = srcArr.map(function(item) {
   return item % 10;
});
console.log("map result:" + mapResult);
var reduceResult = mapResult.reduce(function(a, b) {
    return a + b;
});
console.log("reduceResult:" + reduceResult);