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练习

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Mo_Shellshocker

#1 Created at ... [Delete] [Delete and Lock User] 
function sum(...rest) {
    var sum = 0;
    rest.forEach(function (element) {
        sum += element;
    });
    return sum;
}

function area_of_circle(r, pi) {
    var area;
    if (arguments.length == 1) {
        area = Math.pow(r, 2) * 3.14;
    } else {
        area = Math.pow(r, 2) * pi;
    }
    return area;
}

function max(a, b) {
    var maxNum = a;
    if (a < b) {
        maxNum = b;
    }
    return maxNum;
}

xuehuagai

#2 Created at ... [Delete] [Delete and Lock User]

代码写的很简洁，非常给力。

小雨漫_110

#3 Created at ... [Delete] [Delete and Lock User]

我也耍下一聪明。

function sum(...rest) {
    return rest.reduce( (a, b ) => a + b );
}

tricksterlr

#4 Created at ... [Delete] [Delete and Lock User]

return a>b?a:b

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