JavaScript parse Error

问题

I am using laravel 5.1 PHP framework and a sign chart from a javascript, But when i send data from controller with ' (single quote) but JavaScript Parse as some undefined value $data_B_Temp = "{x : new Date('".$piecesTime[$dataLength]."'), y :".$pieces[$dataLength]."}";

this variable will make a graph point input as

$(function () {

var chart = new CanvasJS.Chart("TempChart",
{


  axisX:{
    title: "time",
    gridThickness: 2,
    interval:1,
    intervalType: "hour",
    valueFormatString: "hh TT K",
    labelAngle: -10
  },
  axisY:{
    title: "distance"
  },
  data: [
  {
    type: "line",
   dataPoints:[{{$data_B_Temp }}]

  }
  ]
});

$("#TempChart").CanvasJSChart(chart.render());


});

But the javascript executes as :

dataPoints:[{x : new Date('2015-10-30 18:16:08'), y :38.5}]

I'm confused &#039 is coming? how to solve it?

回答1:

According to the Laravel Blade documentation, using {{ }} results in an escaped string, which would cause the behavior that you're seeing.

Try using {!! !!} instead; using that syntax will tell Blade to not escape the string.

...
dataPoints: [{!! $data_B_Temp !!}]
...

来源：https://stackoverflow.com/questions/33441211/javascript-parse-error