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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