<!DOCTYPE html>
<html>
<head>
<style>
table,
td {
border: 1px solid red;
}
button {
height: 24px;
width: 24px;
}
</style>
</head>
<body>
<script>
var array1 = [1, 2, 3, 4, 5, 6, 7, 8, 9];
function makeHTMLMatchesTable(array) {
var table = document.createElement('table');
for (var i = 0; i < array.length; i++) {
var row = document.createElement('tr');
var cell = document.createElement('td');
cell.textContent = array[i];
row.appendChild(cell);
cell = document.createElement('td');
var button = document.createElement('button');
button.setAttribute("id", "unMatchButton" + i);
cell.appendChild(button);
row.appendChild(cell);
table.appendChild(row);
}
// This is added to comlete this function
return document.body.appendChild(table);
}
makeHTMLMatchesTable(array1);
// Reference table
var table = document.querySelector('table');
/*
| - Add an eventListener for ckick events to the table
| - if event.target (element clicked; i.e. button)
| is NOT the event.currentTaeget () (element that
| is listening for the click; i.e. table)...
| - ...then assign a variable to event.target's
| id (i.e. #unMatchButton+i)
| - Next extract the last char from the id (i.e. from
| #unMatchButton+i, get the 'i')
| - Then convert it into a real number.
| - Determine the row to which the button (i.e. event
| .target) belongs to by using the old rows method.
| - while row still has children elements...
| - ...remove the first child. Repeat until there are
| no longer any children.
| - if the parent of row exists (i.e. table which it
| does of course)...
| - ...then remove row from it's parents
*/
table.addEventListener('click', function(event) {
if (event.target !== event.currentTarget) {
var clicked = event.target.id;
var i = clicked.substr(-1);
var idx = Number(i);
var row = this.rows[idx];
while (row.children > 0) {
row.removeChild(row.firstChild);
}
if (row.parentNode) {
row.parentNode.removeChild(row);
}
return false
}
}, false);
</script>
</body>
</html>