问题描述
const renderElements = () => {
if (!(data && data.length)) return [];
return data.map(({ id,name },index) => (
<p key={id}>{`${name}${
!(index === data.length - 1) ? "," : ""
}`}</p>
));
}
return (
<div>
{renderElements()}
</div>
)
解决方法
您的代码工作正常,那么为什么还要麻烦寻找另一种编写方式?
但是也许您不需要手动插入逗号,只需将其留在CSS中即可:
const renderElements = () => {
if (!(data && data.length)) return [];
return data.map(({ id,name }) => (
<p key={id}>{name}</p>
));
}
return (
<div>
{renderElements()}
</div>
);
div p {
display: inline;
}
div p:not(:last-of-type)::after {
content: ',';
}
<div>
<p>Alice</p>
<p>Bob</p>
<p>Charlie</p>
<p>David</p>
</div>