检查对象数组中的某个值

Question

function weatherCodes(){
let codes = [{sunny:[1001]},{cloudy:[1002,1003]}]
let theCode = 1003
};

如何检查我的对象数组以查找其中一个是否包含我的变量 theCode

Answer 1

使用 flat() 和 includes() 为您提供的简单参考

function weatherCodes(){
  let codes = [{sunny:[1001]},{cloudy:[1002,1003]}]
  let theCode = 1003
  return codes.some(c => Object.values(c).flat().includes(theCode));
};

console.log(weatherCodes());

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另一种选择

function weatherCodes(){
  let codes = [{sunny:[1001]},{cloudy:[1002,1003]}]
  let theCode = 1003
  let values = codes.flatMap(c => Object.values(c)).flat()
  return values.includes(theCode)
};

console.log(weatherCodes());