JSFiddle - React, Tailwind, and code Playground

JavaScript

$(function() {
    var json = [
  {

    "answer": [

      "4555"

    ],
    "answer_string": "4555|",
    "qid": "70",
    "aid": "742"
  }
];
    $.each(json[], function(i, v) {
        if (v.qid= "70") {
            alert(v.answer[0]);
            return;
        }
    });
});