CanvasRenderingContext2D: lineTo() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The CanvasRenderingContext2D method lineTo(), part of the Canvas 2D API, adds a straight line to the current sub-path by connecting the sub-path's last point to the specified (x, y) coordinates.

Like other methods that modify the current path, this method does not directly render anything. To draw the path onto a canvas, you can use the fill() or stroke() methods.

Syntax

js
lineTo(x, y)

Parameters

x

The x-axis coordinate of the line's end point.

y

The y-axis coordinate of the line's end point.

Return value

None (undefined).

Examples

Drawing a straight line

This example draws a straight line using the lineTo() method.

HTML

html
<canvas id="canvas"></canvas>

JavaScript

The line begins at (30, 50) and ends at (150, 100).

js
const canvas = document.getElementById("canvas");
const ctx = canvas.getContext("2d");

ctx.beginPath(); // Start a new path
ctx.moveTo(30, 50); // Move the pen to (30, 50)
ctx.lineTo(150, 100); // Draw a line to (150, 100)
ctx.stroke(); // Render the path

Result

Drawing connected lines

Each call of lineTo() (and similar methods) automatically adds to the current sub-path, which means that all the lines will all be stroked or filled together. This example draws a letter 'M' with a single contiguous line.

HTML

html
<canvas id="canvas"></canvas>

JavaScript

js
const canvas = document.getElementById("canvas");
const ctx = canvas.getContext("2d");

ctx.moveTo(90, 130);
ctx.lineTo(95, 25);
ctx.lineTo(150, 80);
ctx.lineTo(205, 25);
ctx.lineTo(210, 130);
ctx.lineWidth = 15;
ctx.stroke();

Result

Specifications

Specification
HTML Standard
# dom-context-2d-lineto-dev

Browser compatibility

BCD tables only load in the browser

See also