如何解析反向波兰表示法JSON数组

Question

我有一个输入：

{"expressions":["16 10 / 5 * 20 +","10 11 0 + 1 * + 0 9 - -","13 0 * 11 - 8 -","0 6 + 13 17 * -","15 19 14 1 - + * 1 1 / /"],"id":"1c5322060eed42ca932acfc263063b10"}

我想要数组[["16","10","/","5","*","20","+"],["10","11","0",…]…]

Answer 1

只需解析JSON并按空格拆分结果：

const input = '{"expressions":["16 10 / 5 * 20 +","10 11 0 + 1 * + 0 9 - -","13 0 * 11 - 8 -","0 6 + 13 17 * -","15 19 14 1 - + * 1 1 / /"],"id":"1c5322060eed42ca932acfc263063b10"}'

const expressions = JSON.parse(input).expressions

console.log(expressions.map(
  expression => expression.split(' ')
))