The getRotationOfChar() method of the SVGTextContentElement interface the represents the rotation of a typographic character.
getRotationOfChar(index)indexAn integer; the index of the character.
A float; the rotation angle of the character in degrees.
IndexSizeError DOMExceptionThrown if no character is found at index.
<svg width="200" height="100">
<text id="exampleText" x="10" y="40" writing-mode="vertical-rl">
Hello, SVG
</text>
</svg>const textElement = document.getElementById("exampleText");
// Get the rotation of the first character "H"
const rotation = textElement.getRotationOfChar(0);
console.log(extent); // Output: 90