Why doesn't the code work?

• 0
  let a = parseInt ();
  console.log (a);
  if (a === NaN) {
  console.log (3);
  }
  why is the number 3 not displayed?

  JavaScript Olivia Lambert, Dec 17, 2019

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1 Answers
• 0
  due to the peculiarity of the meaning
  
  you can read here about the feature and how you can check such values.
  
  isNaN

  Anonymous

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