title: How to check for blank cell using getcell in exceljs
body: <p>I am writing a code where i am checking the contents of an excel file using exceljs. I have to check if a cell is empty but I am unable to do that. I have tried the following things:</p>
  <pre><code>if(!worksheet.getCell(`L${colNumber}`).value)
  if(worksheet.getCell(`L${colNumber}`).value === '')
  if(worksheet.getCell(`L${colNumber}`).value == null)
  if(worksheet.getCell(`L${colNumber}`).value === undefined)
  if(worksheet.getCell(`L${colNumber}`).value.length === 0) //logging it gave the length as 1
  if(!!worksheet.getCell(`L${colNumber}`).value)
  </code></pre>