单击选项时显示全部

Question

我得到了这个过滤器，所有的东西都能很好地工作。当我按下特定类别时，它将只列出具有该类别的行。但我意识到，在点击第一个选项后，我不知道如何将它们全部显示出来。我的目标是；类别"；单击"显示所有行"，在特定类别上单击"仅显示特定类别"。

highlightRows = () => {
let oddRows = document.querySelectorAll('tbody > tr.show')
oddRows.forEach((row, index)=> {
if (index % 2 == 0) {
row.style.background = '#f1f1f1'
} else {
row.style.background = '#fff'
}
})
}

const filterOptions = () => {
const option = document.querySelector("#filter").value;
const selection = option.replace('&', '')
const rows = document.querySelectorAll("#body1 > tr");
console.log(rows.length);

rows.forEach(row => {
let td = row.querySelector("td:last-child");
let filter = td.innerText.replace('&', '');
if (filter === selection) {
row.className = 'show'
} else {
row.className = 'hidden'
}
});
highlightRows()
};
document.getElementById("filter").addEventListener("change", filterOptions);

.table-filters {
display: flex;
align-items: center;
justify-content: center;
margin: 2em;
text-align: center;
}
.table-filters a {
color: #222;
font-size: 16px;
font-weight: 500;
margin-right: 1em;
display: inline-block;
}
.table-filters a:hover {
text-decoration: none;
}
.table-filters select {
background: #fff;
font-size: 16px;
font-weight: 500;
width: 12em;
height: 2.5em;
}
table.stats {
background: #fff;
width: 100%;
table-layout: fixed;
border-radius: 6px;
}
tbody tr.show {
display: table-row;
}
tbody tr.hidden {
display: none;
}
table.vypis {
border: 1px solid #ccc;
border-collapse: collapse;
margin: 0;
padding: 0;
width: 100%;
table-layout: fixed;
}
table.vypis > caption {
font-size: 1.5em;
margin: .5em 0 .75em;
}
table.vypis > tr.vypis-riadok {
background-color: #f8f8f8;
border: 1px solid #ddd;
padding: .35em;
}
table.vypis th,
table.vypis td {
padding: .625em;
text-align: center;
}
table.vypis th {
font-size: .85em;
letter-spacing: .1em;
text-transform: uppercase;
}
@media screen and (max-width: 800px) {
table.vypis {
border: 0;
}
table.vypis > caption {
font-size: 1.3em;
}

table.vypis > thead {
border: none;
clip: rect(0 0 0 0);
height: 1px;
margin: -1px;
overflow: hidden;
padding: 0;
position: absolute;
width: 1px;
}

table.vypis tr {
border-bottom: 3px solid #ddd;
display: block;
margin-bottom: .625em;
}

table.vypis td {
border-bottom: 1px solid #ddd;
display: block;
font-size: .8em;
text-align: right;
}

table.vypis td::before {
content: attr(data-label);
float: left;
font-weight: bold;
text-transform: uppercase;
}

table.vypis td:last-child {
border-bottom: 0;
}
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="table-filters">
<select id="filter">
<option selected value="none">Categories</option>
<option>Hobby</option>
<option>Others</option>

</select>
</div>
<table class="vypis">
<caption>Pohyby na účte</caption>
<thead>
<tr>
<th scope="col">Refer</th>
<th scope="col">Date</th>
<th scope="col">Price</th>
<th scope="col">Category</th>
</tr>
</thead>
<tbody id="body1">
<tr class="vypis-riadok">
<td scope="row" data-label="refer">[[X04_riadok_1_popis_transakcie]] <br> [[X10_riadok_2_popis_transakcie]]</td>
<td data-label="date">[[X02_riadok_1_datum]]</td>
<td data-label="price">[[X08_riadok_1_suma]] €</td>
<td data-label="category">Others</td>
</tr> 
<tr class="vypis-riadok">
<td scope="row" data-label="refer">[[X04_riadok_1_popis_transakcie]] <br> [[X10_riadok_2_popis_transakcie]]</td>
<td data-label="date">[[X02_riadok_1_datum]]</td>
<td data-label="price">[[X08_riadok_1_suma]] €</td>
<td data-label="category">Hobby</td>
</tr> 
<tr class="vypis-riadok">
<td scope="row" data-label="refer">[[X04_riadok_1_popis_transakcie]] <br> [[X10_riadok_2_popis_transakcie]]</td>
<td data-label="date">[[X02_riadok_1_datum]]</td>
<td data-label="price">[[X08_riadok_1_suma]] €</td>
<td data-label="category">Others</td>
</tr>

Answer 1

当您添加hidden类时，需要在单击categories选项时删除它，因此一种方法是循环通过tr，检查tr是否包含该类，然后将其更改为show。

演示代码 :

highlightRows = () => {
let oddRows = document.querySelectorAll('tbody > tr.show')
oddRows.forEach((row, index) => {
if (index % 2 == 0) {
row.style.background = '#f1f1f1'
} else {
row.style.background = '#fff'
}
})
}

const filterOptions = () => {
const option = document.querySelector("#filter").value;
const selection = option.replace('&', '')
const rows = document.querySelectorAll("#body1 > tr");
//check if value is not none
if (option != "none") {
rows.forEach(row => {
let td = row.querySelector("td:last-child");
let filter = td.innerText.replace('&', '');
if (filter === selection) {
row.className = 'show'
} else {
row.className = 'hidden'
}
});
highlightRows()
} else {
//loop though rows
rows.forEach(row => {
//check if row has class hidden
if (row.classList.contains("hidden")) {
row.className = 'show'//add showclass
}      
})
highlightRows()
}
};
document.getElementById("filter").addEventListener("change", filterOptions);

.table-filters {
display: flex;
align-items: center;
justify-content: center;
margin: 2em;
text-align: center;
}
.table-filters a {
color: #222;
font-size: 16px;
font-weight: 500;
margin-right: 1em;
display: inline-block;
}
.table-filters a:hover {
text-decoration: none;
}
.table-filters select {
background: #fff;
font-size: 16px;
font-weight: 500;
width: 12em;
height: 2.5em;
}
table.stats {
background: #fff;
width: 100%;
table-layout: fixed;
border-radius: 6px;
}
tbody tr.show {
display: table-row;
}
tbody tr.hidden {
display: none;
}
table.vypis {
border: 1px solid #ccc;
border-collapse: collapse;
margin: 0;
padding: 0;
width: 100%;
table-layout: fixed;
}
table.vypis>caption {
font-size: 1.5em;
margin: .5em 0 .75em;
}
table.vypis>tr.vypis-riadok {
background-color: #f8f8f8;
border: 1px solid #ddd;
padding: .35em;
}
table.vypis th,
table.vypis td {
padding: .625em;
text-align: center;
}
table.vypis th {
font-size: .85em;
letter-spacing: .1em;
text-transform: uppercase;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="table-filters">
<select id="filter">
<option selected value="none">Categories</option>
<option>Hobby</option>
<option>Others</option>

</select>
</div>
<table class="vypis">
<caption>Pohyby na účte</caption>
<thead>
<tr>
<th scope="col">Refer</th>
<th scope="col">Date</th>
<th scope="col">Price</th>
<th scope="col">Category</th>
</tr>
</thead>
<tbody id="body1">
<tr class="vypis-riadok">
<td scope="row" data-label="refer">[[X04_riadok_1_popis_transakcie]] <br> [[X10_riadok_2_popis_transakcie]]</td>
<td data-label="date">[[X02_riadok_1_datum]]</td>
<td data-label="price">[[X08_riadok_1_suma]] €</td>
<td data-label="category">Others</td>
</tr>
<tr class="vypis-riadok">
<td scope="row" data-label="refer">[[X04_riadok_1_popis_transakcie]] <br> [[X10_riadok_2_popis_transakcie]]</td>
<td data-label="date">[[X02_riadok_1_datum]]</td>
<td data-label="price">[[X08_riadok_1_suma]] €</td>
<td data-label="category">Hobby</td>
</tr>
<tr class="vypis-riadok">
<td scope="row" data-label="refer">[[X04_riadok_1_popis_transakcie]] <br> [[X10_riadok_2_popis_transakcie]]</td>
<td data-label="date">[[X02_riadok_1_datum]]</td>
<td data-label="price">[[X08_riadok_1_suma]] €</td>
<td data-label="category">Others</td>
</tr>
</tbody>
</table>