[英]Spread an item to the beginning of the array with React
這個想法是將“Home”項添加到 renderBreadcrumbsList 數組的開頭。 問題是它以遞歸方式呈現,因此我並不真正關心這種機制。 想法?
當前代碼邏輯:
renderBreadcrumb()
方法渲染每個面包屑要求:
renderBreadcrumb()
項傳播到最終(映射)數組的開頭// The following custom item should be spread to the array
renderBreadcrumb({ url, name }, i) {
const { breadcrumbs } = this.props;
const isDisabled = !url || breadcrumbs.length - 1 === i;
return (
<Breadcrumb
name={ name }
url={ url }
index={ i }
key={ i }
isDisabled={ isDisabled }
/>
);
}
// This should be added here
renderBreadcrumbList(breadcrumbs) {
return breadcrumbs.map((_, i) => this.renderBreadcrumb(
breadcrumbs[breadcrumbs.length - 1 - i], i
));
}
這個想法是將“Home”項添加到 renderBreadcrumbsList 數組的開頭。 問題是它以遞歸方式呈現,因此我並不真正關心這種機制。 想法?
當前代碼邏輯:
renderBreadcrumb()
方法渲染每個面包屑要求:
renderBreadcrumb()
項傳播到最終(映射)數組的開頭// The following custom item should be spread to the array
renderBreadcrumb({ url, name }, i) {
const { breadcrumbs } = this.props;
const isDisabled = !url || breadcrumbs.length - 1 === i;
return (
<Breadcrumb
name={ name }
url={ url }
index={ i }
key={ i }
isDisabled={ isDisabled }
/>
);
}
// This should be added here
renderBreadcrumbList(breadcrumbs) {
return breadcrumbs.map((_, i) => this.renderBreadcrumb(
breadcrumbs[breadcrumbs.length - 1 - i], i
));
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.