# Chartjs 1 Basic Line Chart
> Sub-skill of chartjs: 1. Basic Line Chart (+2).
- Skill: `vamseeachanta/chartjs-1-basic-line-chart` (Agent Skill)
- Install (CLI): `npx skillmds@latest add vamseeachanta/chartjs-1-basic-line-chart`
- Raw SKILL.md: https://api.skillmd.com/api/skills/vamseeachanta/chartjs-1-basic-line-chart/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: vamseeachanta (https://skillmd.com/u/vamseeachanta)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/vamseeachanta/chartjs-1-basic-line-chart
---
# 1. Basic Line Chart (+2)
## 1. Basic Line Chart
```html
```
## 2. Bar Chart
```javascript
const ctx = document.getElementById('barChart').getContext('2d');
const barChart = new Chart(ctx, {
type: 'bar',
data: {
labels: ['Red', 'Blue', 'Yellow', 'Green', 'Purple', 'Orange'],
datasets: [{
label: 'Votes',
data: [12, 19, 3, 5, 2, 3],
backgroundColor: [
'rgba(255, 99, 132, 0.6)',
'rgba(54, 162, 235, 0.6)',
'rgba(255, 206, 86, 0.6)',
'rgba(75, 192, 192, 0.6)',
'rgba(153, 102, 255, 0.6)',
'rgba(255, 159, 64, 0.6)'
],
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: {
responsive: true,
scales: {
y: {
beginAtZero: true
}
}
}
});
```
## 3. Pie/Doughnut Chart
```javascript
const ctx = document.getElementById('pieChart').getContext('2d');
const pieChart = new Chart(ctx, {
type: 'pie', // or 'doughnut'
data: {
labels: ['Desktop', 'Mobile', 'Tablet'],
datasets: [{
label: 'Device Usage',
data: [55, 35, 10],
backgroundColor: [
'rgb(255, 99, 132)',
'rgb(54, 162, 235)',
'rgb(255, 205, 86)'
],
hoverOffset: 4
}]
},
options: {
responsive: true,
plugins: {
legend: {
position: 'top',
},
title: {
display: true,
text: 'Device Usage Statistics'
}
}
}
});
```