Method setAttribute

static/katex/katex.mjs:1095–1097

* Sets an arbitrary attribute on the span. Warning: use this wisely. Not * all browsers support attributes the same, and having too many custom * attributes is probably bad.

(attribute, value)

  setAttribute(attribute, value) {
    this.attributes[attribute] = value;
  }

  hasClass(className) {
    return utils.contains(this.classes, className);