SVGTextPathElement: startOffset property

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 startOffset read-only property of the SVGTextPathElement interface reflects the X component of the startOffset attribute of the given <textPath>, which defines an offset from the start of the path for the initial current text position along the path after converting the path to the <textPath> element's coordinate system.

Value

An SVGAnimatedLength object.

Examples

Accessing the `startOffset` property

html

<svg xmlns="http://www.w3.org/2000/svg" width="400" height="200">
  <defs>
    <path id="myPath" d="M10 80 C 40 10, 65 10, 95 80 S 150 150, 180 80" />
  </defs>
  <text font-size="20" fill="blue">
    <textPath id="myTextPath" href="#myPath" startOffset="25%">
      This text follows a path!
    </textPath>
  </text>
</svg>

const textPath = document.getElementById("myTextPath");

// Access the startOffset property
console.log(textPath.startOffset.baseVal.valueAsString); // Output: "25%"