betodealmeida removed a comment on issue #7690: [SQL Lab] Improve result table 
rendering performance
URL: 
https://github.com/apache/incubator-superset/pull/7690#issuecomment-501443981
 
 
   @etr2460 something like this:
   
   ```javascript
   const SVG_NS = 'http://www.w3.org/2000/svg';
   const STYLE_FIELDS = [
     'font',
     'fontWeight',
     'fontStyle',
     'fontSize',
     'fontFamily',
     'letterSpacing',
   ];
   const textNode = document.createElementNS(SVG_NS, 'text');
   const svg = document.createElementNS(SVG_NS, 'svg');
   svg.style.position = 'absolute'; // so it won't disrupt page layout
   svg.style.opacity = '0'; // and not visible
   svg.style.pointerEvents = 'none'; // and not capturing mouse events
   svg.appendChild(textNode);
   document.body.appendChild(svg);
   
   function getTextDimension(input) {
     const { text, className, style = {} } = input;
   
     textNode.textContent = text;
   
     if (className !== undefined && className !== null) {
       textNode.setAttribute('class', className);
     }
   
     STYLE_FIELDS.filter(
       field => style[field] !== undefined && style[field] !== null,
     ).forEach((field) => {
       textNode.style[field] = `${style[field]}`;
     });
   
     const bbox = textNode.getBBox();
     return {
       height: Math.ceil(bbox.height),
       width: Math.ceil(bbox.width),
     };
   }
   ```

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