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Angular 8 chartjs working example

by therichpost
Published: Last Updated on 22 comments
Angular 9, Angular 10

Hello to all, welcome to therichpost.com. In this post, I will tell you, Angular 8 chartjs working example.

Chartjs is very popular and very easy to use. On my blog, I have share many posts related to chartjs.

Now, I am using chartjs in angular 8 and in this I will static data but In my future posts, I will dynamic data from laravel 6.

chartjs-in-angular8
chartjs-in-angular8

Here is the working code snippet and please use this carefully:

1. Here are the basics commands, you need to use into your terminal or command prompt to install Angular 8 fresh set up:

$ npm install -g @angular/cli //Setup Angular8 atmosphere

$ ng new angular8chartjs //Install New Angular App

/**You need to update your Nodejs also for this verison**/

$ cd angular8chartjs //Go inside the Angular 8 Project

2. After Install Angular 8 fresh setup and go inside the Angular 8 setup, run below command into your terminal to install chartjs module:

npm install --save chart.js

3. After all above setup, here is code, you need to add into your app.component.ts file:

import { Component } from '@angular/core';
import * as Chart from 'chart.js'
@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  title = 'angular8chartjs';
  canvas: any;
  ctx: any;
  ngAfterViewInit() {
    this.canvas = document.getElementById('myChart');
    this.ctx = this.canvas.getContext('2d');
    let myChart = new Chart(this.ctx, {
      type: 'pie',
      data: {
          labels: ["New", "In Progress", "On Hold"],
          datasets: [{
              label: '# of Votes',
              data: [1,2,3],
              backgroundColor: [
                  'rgba(255, 99, 132, 1)',
                  'rgba(54, 162, 235, 1)',
                  'rgba(255, 206, 86, 1)'
              ],
              borderWidth: 1
          }]
      },
      options: {
        responsive: false,
        display:true
      }
    });
  }
}

4. Now, add below code into your app.component.html file:

<canvas id="myChart" width="700" height="400"></canvas>

In this end, don’t forget to run ng serve command into your terminal and you will get this url localhost:4200

If you have any query related to this post, then please comment below.

jassa

Thank you

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22 comments

Prashant Kumar Srivastava September 15, 2019 - 6:26 am

Hi sir,

I want to learn use of og tag in angular 7 project. And use its link for sharing on social networking sites.

Thanks

Reply
Ajay Malhotra September 15, 2019 - 6:29 am

Hello sir, it is related to seo or somethings, please explain more briefly.

Reply
vinoth September 16, 2019 - 10:41 am

Hi Ajay ,
This is vinoth
Can you please post example with Grouped Bar chart using data REST api

i have done the Chart but the data is not populating in Chart ,
but i can see the Json in console .
unable to read from that

Reply
vinoth September 17, 2019 - 5:47 am

Hi Thank you so much.

i have tried to draw the grouped bar chart , but its getting over lapping .

export class AppComponent {
title = ‘angular8chartjs’;
canvas: any;
data = [];
chart = [];
constructor(private http: HttpClient) {
this.http.get(‘http://localhost:8080/report/adta?main_state=ALL&type=json’).subscribe(data => {
this.data.push(data);
console.log(this.data);
this.canvas = document.getElementById(‘myChart’);
this.chart = new Chart(‘canvas’, {
type: ‘bar’,
data: {
labels: [this.data[0][‘year’]],
datasets: [{
label: ‘Count’,
data: [this.data[0][‘type1’],
this.data[0][‘type2’],
this.data[0][‘type3’],
this.data[0][‘type4’]],
backgroundColor: [
‘rgba(255, 99, 132, 1)’,
‘rgba(54, 162, 235, 1)’,
‘rgba(255, 206, 86, 1)’
],
borderWidth: 1
}]
},
options: {
responsive: false,
display:true
}
});
}, error => console.error(error));
}
}

Reply
Ajay Malhotra September 17, 2019 - 5:55 am

Which error you are getting?

Reply
Julien Pitt January 16, 2020 - 7:40 am

Thank you for this post.

Reply
pratap singh February 6, 2020 - 10:35 am

hello sir,How can we use waterfall charts instead of pie charts in angular?Thanks in advance.

Reply
Ajay Malhotra February 6, 2020 - 4:31 pm

Sure and I will share link soon.

Reply
Rahul February 7, 2020 - 4:25 am

Where can I find your chart.js samples with external data like csv or json?

Reply
Bapu September 26, 2020 - 6:20 am

Thank you. It is helped me.

Reply
Ajay Malhotra September 26, 2020 - 6:21 am

πŸ™‚

Reply
Lingesh October 20, 2020 - 10:53 am

Hello Vijay…
When we use the same code to bar chart the minimum data is getting nothing in Chart.. any help ? πŸ™‚

Reply
Ajay Malhotra October 20, 2020 - 4:09 pm

Will update you on this.

Reply
Lingesh October 27, 2020 - 1:02 pm

Hello Ajay….. any help on this πŸ™‚

Reply
Lingesh October 29, 2020 - 12:37 pm

Ajay… i Observed the issue that any one of displaying bar level minimum 15 else it does not display … how we can change the scale ( startup )..

for example 5,6,15 is there is no issue… but 5,6,10 means the 5 is not getting display

Reply
Ajay Malhotra October 29, 2020 - 1:46 pm

Correct

Ramachandran December 8, 2020 - 6:16 am

Hi,

I’ve built a angular project sample with chart.js. The type of chart I’m working on is the vertical bar type chart.
I’m currently able to generate the bar chart with appropriate data. I’m currently working on the tooltip style.
I need your help in setting the code for tooltips caret pointing downwards.

I found that using tooltip property ‘yAlign:”bottom”‘ will resolve my need while googling. However, using ‘yAlign’ property in my project throws error stating that ‘yAlign’ not a property in chart.js
This is for your info that I’m using the chart .js version 2.7.2 and Angular 8+.

Could you please guide me on this regards?

Reply
Ajay Malhotra December 8, 2020 - 7:29 am

Okay sure, I will update you on this.

Reply
kapil soni April 8, 2022 - 2:34 am

Hi ajay i have tried ur solution and its working but after hover value will be undefined can you why i get undefined on hover?

Reply
Ajay Malhotra April 8, 2022 - 4:13 am

are you getting data dynamic?

Reply

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