Question

我想绘制折线图，但是我的日期从sql-server数据中获取包括时间在内的值我该如何节省时间

Sensor

console.log（json）这是结果

            console.log(json);
            if (json.length > 0) {

                var datagraph = [];
                datagraph.push(['Date', 'Point']);
                for (i = 0; i < json.length; i++) {
                    var smalldata = [];
                    var date = json[i].Date;
                    var point = json[i].Point;
                    smalldata.push(date, point);
                    datagraph.push(smalldata);

                }                
            }

Answer 1

使用函数“ split”将字符串除以字符“ T”

<div style="position: relative; width: 100px; height: 100px; display: flex; align-items: center; justify-content: center;">
  <mat-progress-spinner style="width: 100px;height: 100px;position: absolute;top: 0;left: 0;" [color]="'primary'" [mode]="'determinate'" [value]="60">
  </mat-progress-spinner>
  <h1 >69%</h1>
</div>

数据dateTime绘制折线图的唯一日期

1 个答案: