Question

How to remove an array element in TypeScript

Answer 1

let arr: Array<string> = ['TypeScript', 'C', 'C++', 'Java', 'Python', 'PHP']; 
  
const index = 3;
 
arr.splice(index, 1);
 
console.log(arr); 
 
   
   
   
   
/*
   
run:
   
["TypeScript", "C", "C++", "Python", "PHP"] 
  
*/

 

70+ SQL courses for beginners and professionals

Answer 2

let arr: Array<string> = ['TypeScript', 'C', 'C++', 'Java', 'Python', 'PHP']; 
  
const index = arr.indexOf('Python');

if (index > -1) {
   arr.splice(index, 1);
}
 
console.log(arr); 
 
   
   
   
   
/*
   
run:
   
["TypeScript", "C", "C++", "Java", "PHP"] 
  
*/

 

70+ SQL courses for beginners and professionals