January 29-30-31

• February 1, 2020 at 12:36 am #28254
  
  tnt

  Is there any error in my code? I don’t understand why it appears as March and it should be on January.

  window.onload = function() {
   
  var chart = new CanvasJS.Chart("chartContainer", {
  	animationEnabled: true,
  	axisX: {
  		title: "",
  		valueFormatString: "DD MMM"
  	},
  	axisY: {
  		includeZero:false,
  		title: "Copas",
  		ValueFormatString: "#####",
  	},
  	data: [{
  		type: "splineArea",
  		color: "rgba(54,158,173,.7)",
  		xValueFormatString: "DD MMM",
  		yValueFormatString: "#####",
  		dataPoints: [
  			{ x: new Date(2020, 01, 31), y: 13083},{ x: new Date(2020, 01, 20), y: 13089},{ x: new Date(2020, 01, 26), y: 13099},		]
  	}]
  });
  chart.render();

  

  • This topic was modified 4 years, 9 months ago by tnt.
  • This topic was modified 4 years, 9 months ago by tnt.
  February 1, 2020 at 12:52 am #28257
  
  tnt

  Same here

  
  
  window.onload = function() {
   
  var chart = new CanvasJS.Chart("chartContainer", {
  	animationEnabled: true,
  	axisX: {
  		title: "",
  		valueFormatString: "DD MMM"
  	},
  	axisY: {
  		includeZero:false,
  		title: "Copas",
  		ValueFormatString: "#####",
  	},
  	data: [{
  		type: "splineArea",
  		color: "rgba(54,158,173,.7)",
  		xValueFormatString: "DD MMM",
  		yValueFormatString: "#####",
  		dataPoints: [
  			{ x: new Date(2020, 01, 30), y: 13020},{ x: new Date(2020, 01, 31), y: 13083},		]
  	}]
  });
  chart.render();
  }             
  

  

  February 3, 2020 at 7:59 pm #28270
  
  Manoj Mohan

  @tnt,

  In JavaScript Month starts from 0 (January) and ends at 11(December). So in your case, new Date(2020, 01, 30) and new Date(2020, 01, 31) represents 1st of March and 2nd March respectively. Changing new Date(2020, 01, 30) to new Date(2020, 00, 30) and new Date(2020, 01, 31) to new Date(2020, 00, 31) should work fine in your case.

  —-
  Manoj Mohan
  Team CanvasJS