javascript - 从 JSON 中的数组中乘出 `Odds` 值

Question

我像这样从 url 得到一个 json 数组

{"soccerodds2017":[
    {"Selections":"Chelsea","Odds":"1.44"},
    {"Selections":"Wolverhampton","Odds":"2.33"},
    {"Selections":"Walsall","Odds":"2.70"}
]}

我想将赔率乘以 10示例:10*1.44*2.33*2.70 并得到总数。如何在 javascript 中做到这一点？

Answer 1

您可以使用 reduce() 将累加器的初始值设置为 10，然后将每个 e.Odds 值相乘。

var obj = {"soccerodds2017":[{"Selections":"Chelsea","Odds":"1.44"},{"Selections":"Wolverhampton","Odds":"2.33"},{"Selections":"Walsall","Odds":"2.70"}]}

var total = obj.soccerodds2017.reduce(function(r, e) {
  return r * +e.Odds
}, 10)

console.log(total)