javascript - 将对象属性和值转换为字符串

Question

如何将 JavaScript 对象属性和值转换为字符串？

例子:

{
  name: "mark",
  age: "20"
  status: "single"
}

预期输出:

name:mark AND age:20 AND status:single

Answer 1

有很多方法可以做到这一点，所有的变体都是通过对象的属性进行迭代。例如:

function propsAsString(obj) {
  return Object.keys(obj).map(function(k) { return k + ":" + obj[k] }).join(" AND ")
}

console.log(propsAsString({ name: "mark", age: "20", status: "single" }))
console.log(propsAsString({ color: "red", shape: "square" }))
console.log(propsAsString({ name: "mary" }))
console.log(propsAsString({ })) // outputs empty string

进一步阅读:

• Object.keys()
• .map()
• .join()