小编Jos*_*osh的帖子

在reducer中更新状态的更好方法是什么？

case DELETE_INTEREST:
    let deleteInterests = state.user.interests;
    let index = deleteInterests.findIndex(i => i == action.payload);
    deleteInterests.splice(index, 1);
    return { ...state, user: { ...state.user, interests: deleteInterests } };

ESLint不喜欢在reducer中的case块内部使用let语句,得到:

eslint:no-case-declaration - case块中的意外词法声明

为什么这个文本没有显示在这个视图中？尝试在圆圈和文字上弯曲。我喜欢在海滩上散步并写一些额外的字符来使这篇文章变得活跃。

import React, {Component} from 'react';
import {View, StyleSheet, Text} from 'react-native';

export default class Interest extends Component {
    constructor(props) {
        super(props);
    }

    render() {
        return(
            <View style={styles.circle}>
                <Text style={styles.text}>{this.props.title}</Text>
            </View>
        );
    }
}

const styles = StyleSheet.create({
    circle: {
        //flex: 1,
        padding: 15,
        borderRadius: 50,
        borderWidth: 1,
        borderColor: 'black',
        height: 10,
        minWidth: 80,
        alignItems: 'center',
        marginBottom: 10
    },
    text: {
        //flex: 0,
        fontFamily: "CircularStd-Book",
        fontSize: 14,
        color: '#2f354b',
        textAlign: 'center'
    }
});

即使this.toilets充满了对象,我也收到了这个错误

日志首先显示this.location,然后是this.toilets,其中包含所显示的对象.

this.loadHomeData().then(data => {
                this.toilets = data;
                console.log(this.toilets);

            });

loadHomeData() {
        return new Promise(resolve => {
            this.http.get('http://url-to-my-server/' + this.location.coords.latitude + '/' + this.location.coords.longitude)
                .map(res => res.json())
                .subscribe(data => {
                    this.data = data;
                    resolve(this.data);
                });
        });
    }

this.toilets.forEach((toilet) => {
                console.log(toilet);
           });

嘿家伙我正在尝试开发一个从数据库中返回趋势文章的查询.

热门文章基于过去24小时内的大多数观点.这是迄今为止的代码:

$trending = Article::whereHas('view', function ($query) {
   $query->where('created_at', '>=', Carbon::now()->subHours(24));
})
->with('view')
->orderBy('created_at', 'DESC')
->get();

return $trending;
}

文章模型具有以下关系:

public function view()
{
    return $this->hasMany('ArticleView', 'article_id');
}

该查询有效,但我还需要按视图计数对文章进行排序.例如,显示当前趋势文章,但具有最多视图计数的artticles不是从头到尾排序(显然 - 它们按created_at排序)

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