p5.js textHeight() gets height of text box – text(words,x,y,w,h)

p5.textHeight.js

 function textHeight(text, maxWidth) {
     var words = text.split(' ');
     var line = '';
     var h = this._textLeading;

     for (var i = 0; i < words.length; i++) {
         var testLine = line + words[i] + ' ';
         var testWidth = drawingContext.measureText(testLine).width;

         if (testWidth > maxWidth && i > 0) {
             line = words[i] + ' ';
             h += this._textLeading;
         } else {
             line = testLine;
         }
     }

     return h;
 }

https://editor.p5js.org/ThatsTrue/sketches/QmHcXTd_o