Question

How to remove only strings from existing array in TypeScript

Answer 1

const array = [15, 'javascript', 'node.js', 22, 'typescript', 94, 25];
 
array.sort(v => typeof v === 'string');
 
array.splice(array.findIndex(i => typeof i === 'string'));
 
console.log(array);
  
  
  
  
/*
run:
  
[15, 22, 94, 25] 
  
*/

 

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Answer 2

const array = [15, 'javascript', 'node.js', 22, 'typescript', 94, 25];
 
for (let i = array.length - 1; i >= 0; i--) {
    if (typeof array[i] === "string") {
        array.splice(i, 1);
    }
}
 
console.log(array);
  
  
  
  
/*
run:
  
[15, 22, 94, 25] 
  
*/

 

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