Baseline Widely available
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.
x
The x-axis coordinate of the line's end point.
y
The y-axis coordinate of the line's end point.
None (undefined).
This example draws a straight line using the lineTo() method.
<canvas id="canvas"></canvas>
The line begins at (30, 50) and ends at (150, 100).
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
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.
<canvas id="canvas"></canvas>
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();
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