Kuonyesha Safu ya Vitu kwenye React
Tuchukulie tuna safu ya vitu vyenye bidhaa:
const prods = [
{name: 'product1', cost: 100},
{name: 'product2', cost: 200},
{name: 'product3', cost: 300},
];
function App() {
}
Wacha tuonyeshe kila bidhaa kwenye aya yake:
function App() {
const res = prods.map(function(item) {
return <p>{item.name} {item.cost}</p>;
});
return <div>
{res}
</div>;
}
Inawezekana kuweka jina na bei ya bidhaa kwenye kitambulisho (tag) tofauti, kwa mfano hivi:
function App() {
const res = prods.map(function(item) {
return <p>
<span>{item.name}</span>:
<span>{item.cost}</span>
</p>;
});
return <div>
{res}
</div>;
}
Usisahau kuongeza sifa key:
function App() {
const res = prods.map(function(item, index) {
return <p key={index}>
<span>{item.name}</span>:
<span>{item.cost}</span>
</p>;
});
return <div>
{res}
</div>;
}
Katika kijenzi App kuna safu ifuatayo:
const users = [
{name: 'user1', surn: 'surn1', age: 30},
{name: 'user2', surn: 'surn2', age: 31},
{name: 'user3', surn: 'surn3', age: 32},
];
Onyesha vipengele vya safu hii kwa kutumia orodha
ul.