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[이벤트 위임] 과제3 해답 번역 - line 62(#1312) #1339

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[이벤트 위임] 과제3 해답 번역 - line 62(#1312) #1339

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173 changes: 87 additions & 86 deletions 2-ui/2-events/03-event-delegation/3-sortable-table/solution.view/index.html
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Original file line number Diff line number Diff line change
@@ -1,98 +1,99 @@
<!DOCTYPE HTML>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<style>
table {
border-collapse: collapse;
}
th,
td {
border: 1px solid black;
padding: 4px;
}
th {
cursor: pointer;
}
th:hover {
background: yellow;
}
</style>
</head>

<head>
<meta charset="utf-8">
<style>
table {
border-collapse: collapse;
}
th, td {
border: 1px solid black;
padding: 4px;
}
th {
cursor: pointer;
}
th:hover {
background: yellow;
}
</style>
</head>

<body>
<body>
<table id="grid">
<thead>
<tr>
<th data-type="number">Age</th>
<th data-type="string">Name</th>
</tr>
</thead>
<tbody>
<tr>
<td>5</td>
<td>John</td>
</tr>
<tr>
<td>2</td>
<td>Pete</td>
</tr>
<tr>
<td>11</td>
<td>Ann</td>
</tr>
<tr>
<td>9</td>
<td>Eugene</td>
</tr>
<tr>
<td>1</td>
<td>Ilya</td>
</tr>
</tbody>
</table>

<table id="grid">
<thead>
<tr>
<th data-type="number">Age</th>
<th data-type="string">Name</th>
</tr>
</thead>
<tbody>
<tr>
<td>5</td>
<td>John</td>
</tr>
<tr>
<td>2</td>
<td>Pete</td>
</tr>
<tr>
<td>12</td>
<td>Ann</td>
</tr>
<tr>
<td>9</td>
<td>Eugene</td>
</tr>
<tr>
<td>1</td>
<td>Ilya</td>
</tr>
</tbody>
</table>
<script>
grid.onclick = function (e) {
if (e.target.tagName != "TH") return;

<script>
let th = e.target;
// TH이면 분류하세요
// cellIndex is the number of th:
// 0 for the first column
// 1 for the second column, etc
sortGrid(th.cellIndex, th.dataset.type);
};

grid.onclick = function(e) {
if (e.target.tagName != 'TH') return;
function sortGrid(colNum, type) {
let tbody = grid.querySelector("tbody");

let th = e.target;
// if TH, then sort
// cellIndex is the number of th:
// 0 for the first column
// 1 for the second column, etc
sortGrid(th.cellIndex, th.dataset.type);
};
let rowsArray = Array.from(tbody.rows);

function sortGrid(colNum, type) {
let tbody = grid.querySelector('tbody');
// compare(a, b) compares two rows, need for sorting
let compare;

let rowsArray = Array.from(tbody.rows);
switch (type) {
case "number":
compare = function (rowA, rowB) {
return (
rowA.cells[colNum].innerHTML - rowB.cells[colNum].innerHTML
);
};
break;
case "string":
compare = function (rowA, rowB) {
return rowA.cells[colNum].innerHTML > rowB.cells[colNum].innerHTML
? 1
: -1;
};
break;
}

// compare(a, b) compares two rows, need for sorting
let compare;
// sort
rowsArray.sort(compare);

switch (type) {
case 'number':
compare = function(rowA, rowB) {
return rowA.cells[colNum].innerHTML - rowB.cells[colNum].innerHTML;
};
break;
case 'string':
compare = function(rowA, rowB) {
return rowA.cells[colNum].innerHTML > rowB.cells[colNum].innerHTML ? 1 : -1;
};
break;
tbody.append(...rowsArray);
}

// sort
rowsArray.sort(compare);

tbody.append(...rowsArray);
}
</script>

</body>
</script>
</body>
</html>