I'm new here and i'm creating a web app where i show a ranking table of people who bid more, i made already a bubble sort where I sort people according to who bet the most from mysql database and then i put this value into the table, but i came across a doubt:
import React, { useState, useEffect } from 'react';
import './Table.css';
import Axios from 'axios';
function Table() {
const [peopleShow, setPeopleShow] = useState([]);
useEffect(() => {
Axios.get('http://localhost:3001/show').then(response => {
setPeopleShow(response.data);
});
}, []);
return (
<section>
<div class="tbl-header">
<table cellpadding="0" cellspacing="0" border="0">
<thead>
<tr>
<th>Ranking</th>
<th>Nationality</th>
<th>Username</th>
<th>Money</th>
<th>Last bid</th>
<th>New bid</th>
</tr>
</thead>
</table>
</div>
<div class="tbl-content">
<table cellpadding="0" cellspacing="0" border="0">
<tbody>
{peopleShow.map(val => {
let bubblesort = val => {
let len = val.money.length;
let swapped;
do {
swapped = false;
for (let i = 0; i < len; i++) {
if (val.money[i] > val.money[i + 1]) {
let tmp = val.money[i];
val.money[i] = val.money[i + 1];
val.money[i + 1] = tmp;
swapped = true;
}
}
} while (swapped);
return val;
};
return (
<tr>
<td>fff</td>
<td>{val.nationality}</td>
<td>{val.username}</td>
<td>{val.money}</td>
<td>{val.lastbid}</td>
<td>-0.36%</td>
</tr>
);
})}
</tbody>
</table>
</div>
</section>
);
}
export default Table;
How can i pass the variable of the money into the bubble sort? thanks!!
You can define bubblesort
function as a component function.
import React, { useState, useEffect } from 'react';
import './Table.css';
import Axios from 'axios';
function Table() {
const [peopleShow, setPeopleShow] = useState([]);
useEffect(() => {
Axios.get('http://localhost:3001/show').then(response => {
setPeopleShow(response.data);
});
}, []);
const bubblesort = val => {
let len = val.money.length;
let swapped;
do {
swapped = false;
for (let i = 0; i < len; i++) {
if (val.money[i] > val.money[i + 1]) {
let tmp = val.money[i];
val.money[i] = val.money[i + 1];
val.money[i + 1] = tmp;
swapped = true;
}
}
} while (swapped);
return val;
};
return (
<section>
<div class="tbl-header">
<table cellpadding="0" cellspacing="0" border="0">
<thead>
<tr>
<th>Ranking</th>
<th>Nationality</th>
<th>Username</th>
<th>Money</th>
<th>Last bid</th>
<th>New bid</th>
</tr>
</thead>
</table>
</div>
<div class="tbl-content">
<table cellpadding="0" cellspacing="0" border="0">
<tbody>
{peopleShow.map(item => {
const val = bubblesort(item);
return (
<tr key={val.username}>
<td>fff</td>
<td>{val.nationality}</td>
<td>{val.username}</td>
<td>{val.money}</td>
<td>{val.lastbid}</td>
<td>-0.36%</td>
</tr>
);
})}
</tbody>
</table>
</div>
</section>
);
}
export default Table;
Also don't forget to set key
prop for mapping items.
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