javascript - Display Content Underscore js -


i trying display data within table using underscore.js.

i have div container class here:

<div id="container"></div>

now on windows load added event listener:

window.addeventlistener("load", function(event){       let content = document.getelementbyid('container');       _.each(students, function(elem, index, list){         _.extend(elem, {overall_score : (elem.midterm_score + elem.final_score) / 2});         let items = '<table border="1"><thead><tr><th>last name</th><th>first name</th><th>school</th><th>grade</th><th>overall score</th></tr></thead><tbody><tr class="studentrec"><td class="lastname">' + elem.lastname +         '</td><td class="firstname">' + elem.firstname + '</td><td class="school">' + elem.school + '</td><td class="grade">' + elem.grade + '</td><td class="overall-score">' + elem.overall_score + '</td></tr></tbody>';         content.innerhtml += items;       });     });

so added of records in items variable , put them within table layout. extended specific column w/c overall score. instead of plain table, got this:

enter image description here

as can see table header gets repeated each time. think missing here create perfect table?

because, output many table each record...

try this:

window.addeventlistener("load", function(event){     let content = document.getelementbyid('container');     let table = document.createelement('table');     let thead = document.createelement('thead');     let tbody = document.createelement('tbody');     let tr;     thead.innerhtml = '<tr><th>last name</th><th>first name</th><th>school</th><th>grade</th><th>overall score</th></tr>';      _.each(students, function(elem, index, list){         _.extend(elem, {overall_score : (elem.midterm_score + elem.final_score) / 2});         tr = document.createelement('tr');         tr.classname = 'studentrec';         tr.innerhtml = '<td class="lastname">' + elem.lastname +         '</td><td class="firstname">' + elem.firstname + '</td><td class="school">' + elem.school + '</td><td class="grade">' + elem.grade + '</td><td class="overall-score">' + elem.overall_score + '</td>';         tbody.appendchild(tr);     });      table.border = 1;     table.appendchild(thead);     table.appendchild(tbody);     content.appendchild(table); });

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