rxjs/operators#windowCount TypeScript Examples

The following examples show how to use rxjs/operators#windowCount. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: index.tsx    From jetlinks-ui-antd with MIT License 5 votes vote down vote up 
Time: React.FC<Props> = props => {

    const { time } = props;
    const [data, setData] = useState<any>([]);
    useEffect(() => {
        // 后端提供了distTimeList字段，可直接取。
        new Observable(sink => {
            Object.keys(time || {}).forEach(e => sink.next({ time: e, value: time[e] }));
            sink.complete();
        }).pipe(
            windowCount(2, 1),
            mergeMap(i => i.pipe(toArray())),
            filter(arr => arr.length > 0),
            map((arr: any[]) => ({
                label: arr.length === 1 ?
                    `>=${arr[0].time}` :
                    arr.map(i => i.time).join('~'), value: arr[0].value
            })),
            toArray(),
        ).subscribe((result) => { setData(result) })

    }, [time]);

    const cols = {
        label: {
            min: 0,
            max: 100,
            alias: 'ms'
        },
        value: {
            alias: '次',
            min: 0,
            ticks: [0, 40, 80, 120, 160]
        }
    };
    // x :ms 
    // y :个
    return (
        <Chart height={350} data={data} scale={cols} forceFit>

            <span className='sub-title' style={{ marginLeft: 40, fontWeight: 700 }}>
                连接时间分布
             </span>
            <Axis name="label"
                label={{ autoRotate: false }}
                title={{
                    autoRotate: false,
                    position: 'end',
                    offset: 15,
                    textStyle: {
                        fontSize: '12',
                        textAlign: 'center',
                        fill: '#999',
                        fontWeight: 'bold',
                        // rotate: 0,
                    }
                }} />
            <Axis name="value"
                label={{ autoRotate: false }}
                title={{
                    autoRotate: false,
                    position: 'center',
                    offset: 40,
                    textStyle: {
                        fontSize: '12',
                        textAlign: 'right',
                        fill: '#999',
                        fontWeight: 'bold',
                        rotate: 0,
                    }
                }} />
            <Tooltip
                crosshairs={{
                    type: "y"
                }}
            />
            <Geom type="interval" position="label*value" />
        </Chart>
    )
}