How to join or combine two arrays to concatenate into one array?

JavaScript Joins - How to join two arrays in JavaScript?

How to join or combine two arrays to concatenate into one array?

The Example for “Join Two Arrays” in JavaScript as,


<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8" />
  <title></title>
  <link rel="stylesheet" href="style.css" />
  <script data-require="jquery" data-semver="3.1.1" src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
  <script>
    var users = [{
      id: 1,name: "Anil SIngh"}, {id: 2,name: "Alok"}, {
      id: 3,name: "Dilip"}, {id: 4, name: "Aradhya" }];

    var questions = [{
      id: 1, text: "70%", ques_user_id: 2 }, {
      id: 2,text: "71%",ques_user_id: 2 }, {
      id: 3,text: "58%", ques_user_id: 1 }, {
      id: 4,text: "68%",ques_user_id: 2}, {
      id: 5,text: "82%", ques_user_id: 3}, {
      id: 6,text: "55%",ques_user_id: 3 }];

    var joins = innerJoin(users, questions, function(user, question) {
      if (question.ques_user_id === user.id) {
        return {
          id: question.id,  text: question.text,  name: user.name
        };
      }
    });

    function innerJoin(a, b, select) {
      var m = a.length,
        n = b.length,
        c = [];

      for (var i = 0; i < m; i++) {
        var x = a[i];

        for (var j = 0; j < n; j++) { // cartesian product - all combinations
          var y = select(x, b[j]); // filter out the rows and columns you want
          if (y) c.push(y); // if a row is returned add it to the table
        }
      }

      return c;
    }

    alert(JSON.stringify(joins));
  </script>
</head>

<body>
  <h1>How to join two objects in javascript?</h1>
</body>

</html>

The Result as,

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ANIL SINGH

Anil Singh is an author, tech blogger, and software programmer. Book writing, tech blogging is something do extra and Anil love doing it. For more detail, kindly refer to this link..
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