Javascript x undefined object /数组

Question

我有一个对象，我将数据存储为

{"anti-social-behaviour":43,"burglary":24,"other-theft":29,"shoplifting":2,"vehicle-crime":27,"violent-crime":34,"criminal-damage-arson":17,"public-order":2,"drugs":1,"robbery":3,"other-crime":3,"bicycle-theft":1}

我正在尝试将此数据解释为图表，google api。使用以下内容

data.addRows([
  ['Drugs', crimes.drugs],
['bicycle-theft', crimes.bicycle-theft],
]);

crimes.drugs 工作正常但是 crimes.bicycle-theft 正在抛出

Uncaught (in promise) ReferenceError: theft is not defined
at drawChart (crimes.js:126)
at <anonymous>

Answer 1

由于属性(property) bicycle-theft 有一个 - ，你不能通过 点运算符，试试这个，

data.addRows([
  ['Drugs', crimes.drugs],
  ['bicycle-theft', crimes['bicycle-theft']],
]);