Method extend

static/katex/katex.mjs:4845–4866

* Returns a new options object with the same properties as "this". Properties * from "extension" will be copied to the new options object.

(extension)

  extend(extension) {
    const data = {
      style: this.style,
      size: this.size,
      textSize: this.textSize,
      color: this.color,
      phantom: this.phantom,
      font: this.font,
      fontFamily: this.fontFamily,
      fontWeight: this.fontWeight,
      fontShape: this.fontShape,
      maxSize: this.maxSize
    };

    for (const key in extension) {
      if (extension.hasOwnProperty(key)) {
        data[key] = extension[key];
      }
    }

    return new Options(data);
  }
  /**
   * Return an options object with the given style. If `this.style === style`,
   * returns `this`.