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How to check if the variable is undefined in TypeScript



190 views
asked Jan 26, 2022 by avibootz
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1 Answer

0 votes 
let x;
  
if (typeof x === 'undefined') {
    console.log('undefined');
}
  
    
      
      
/*
run:
      
"undefined"
      
*/

 



answered Jan 26, 2022 by avibootz
edited Jan 28, 2022 by avibootz

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