Question

How to remove empty elements from an array in JavaScript

Answer 1

let array = [5, 6, null, "javascript", "", 7, undefined, 9, , , undefined, 0, , 8,];
  
console.log(array);
 
array = array.filter(element => {
     return element != undefined && element != null && element != "";
});
 
console.log(array);
 
 
     
     
     
/*
run:
     
[5, 6, null, "javascript", "", 7, undefined, 9, undefined, undefined, undefined, 0, undefined, 8]
[5, 6, "javascript", 7, 9, 8]
     
*/

 

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Answer 2

let array = [5, 6, null, "javascript", "", 7, undefined, 9, , , undefined, 0, , 8,];

array = array.filter(n => n)
  
console.log(array);

      
      
/*
run:
      
[ 5, 6, 'javascript', 7, 9, 8 ]
      
*/

 

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