我想在AngularJS(v1.5.8)中創建一個圖表組件,但由於某些奇怪的原因,chart.js沒有被初始化。 http://codepen.io/flyinggambit/pen/eBYezK爲什麼chart.js不能使用angular JS
angular.module("dashboard", [])
.component("exceptionChart", {
template: "<canvas width='200' height='200' class='{{$ctrl.class}}'></canvas>",
bindings: {
class: '@'
},
controller: function($element) {
this.$postLink = function() {
// code for chart
var ctx = $element.find('canvas')[0];
var myChart = new Chart(ctx, {
type: 'bar',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: '# of Votes',
data: [12, 19, 3, 5, 2, 3],
backgroundColor: [
'rgba(255, 99, 132, 0.2)',
'rgba(54, 162, 235, 0.2)',
'rgba(255, 206, 86, 0.2)',
'rgba(75, 192, 192, 0.2)',
'rgba(153, 102, 255, 0.2)',
'rgba(255, 159, 64, 0.2)'
],
borderColor: [
'rgba(255,99,132,1)',
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(153, 102, 255, 1)',
'rgba(255, 159, 64, 1)'
],
borderWidth: 1
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero: true
}
}]
}
}
});
}
}
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.8/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.3.0/Chart.bundle.min.js"></script>
<div ng-app="dashboard">
<exception-chart class=""></exception-chart>
</div>
<canvas id="myChart" width="200" height="200"></canvas>
然而,對於香草JS同一作品的代碼。 http://codepen.io/flyinggambit/pen/MbWOmG
這是什麼原因?我怎樣才能解決這個問題 ?
這是一個後續的問題從這裏http://stackoverflow.com/questions/40417880/how-to-get-a-reference模板中的元素 –