Angular2打字稿中的第三方JS

Question

我是角度和打字稿的新手,所以这可能是非常基本的.

我正在尝试使用模板中的图表(使用Chart.js)创建一个angular2组件.

我意识到正在开发一个图表指令,它专门使用Chart.JS,但我想了解如何做到这一点,因为毫无疑问它会出现在指令不可用的情况下.

到目前为止,我试图在模板中做这个简单的事情:

<canvas id="chart"></canvas>
<script> 
$(function () {
//instantiate chart on $("#chart")
});
</script>

但是当这个模板由angular2加载时,这个javascript甚至都没有运行.

我该怎么做？

Answer 1

好的 - 在@Pogrindis的帮助下,我想我找到了一个可用的,不太复杂的解决方案.

通过简单地从这里添加chart.js的输入定义并在自定义指令中引用它我终于有了这个:

chart.directive.ts

/// <reference path="../../typings/chartjs/chart.d.ts" />

import {Directive, ElementRef, Renderer, Input} from 'angular2/core';
@Directive({
    selector: '[chart]'
})
export class ChartDirective {
    constructor(el: ElementRef, renderer: Renderer) {
        //el.nativeElement.style.backgroundColor = 'yellow';
        var data = {
            labels: ["January", "February", "March", "April", "May", "June", "July"],
            datasets: [
                {
                    label: "My First dataset",
                    fillColor: "rgba(220,220,220,0.2)",
                    strokeColor: "rgba(220,220,220,1)",
                    pointColor: "rgba(220,220,220,1)",
                    pointStrokeColor: "#fff",
                    pointHighlightFill: "#fff",
                    pointHighlightStroke: "rgba(220,220,220,1)",
                    data: [65, 59, 80, 81, 56, 55, 40]
                },
                {
                    label: "My Second dataset",
                    fillColor: "rgba(151,187,205,0.2)",
                    strokeColor: "rgba(151,187,205,1)",
                    pointColor: "rgba(151,187,205,1)",
                    pointStrokeColor: "#fff",
                    pointHighlightFill: "#fff",
                    pointHighlightStroke: "rgba(151,187,205,1)",
                    data: [28, 48, 40, 19, 86, 27, 90]
                }
            ]
        };
        var ctx: any = el.nativeElement.getContext("2d");
        var lineChart = new Chart(ctx);
        ////var lineChartOptions = areaChartOptions;
        ////lineChartOptions.datasetFill = false;
        lineChart.Line(data);
    }
}

app.component.ts

import {Component} from 'angular2/core';
import {ChartDirective} from './chart.directive';

@Component({
    directives: [ChartDirective],
    selector: 'chart-graph', 
    templateUrl: '/js/app/template.html'
})

export class AppComponent { }

和template.html:

<canvas id="myChart" chart width="400" height="400"></canvas>